Definition of proportional in English:

proportional

adjective

  • 1Corresponding in size or amount to something else.

    ‘the punishment should be proportional to the crime’
    • ‘As such the amount paid in fees, proportional to the amount under management, has continued to increase.’
    • ‘The amount of tiles left out will be proportional to the size of the tile.’
    • ‘History has shown that such groups will have voluntary, or involuntary, leaks proportional to the size of the group.’
    • ‘And it's got to be roughly proportional and roughly balanced, or else it breaks down.’
    • ‘The intensity of the fluorescence is proportional to the amount of product being made.’
    • ‘Thus, the magnitude of the Effect is proportional to the size of the population that causes it.’
    • ‘The circle sizes are proportional to the numbers of molecules they represent.’
    • ‘The amounts produced are proportional to the size of the gland, whether this is increased benignly or by prostate cancer.’
    • ‘The effects of these gases were directly proportional to the amount inhaled by the soldier.’
    • ‘Regardless of the particular model, the dollar impacts are small and roughly proportional to income.’
    • ‘The amount of injury is proportional to the duration and severity of the ischemia.’
    • ‘This shows countries drawn as geometric blocks whose size is proportional to the nation's total GDP.’
    • ‘I think the amount they complain is directly proportional to the amount of money they make.’
    • ‘Their ability to do so was assumed to be proportional to the size of their landholdings.’
    • ‘The stress generated by a situation seems to be inversely proportional to the amount of control you have over it.’
    • ‘These odds are inversely proportional to the amount of your insurance payment.’
    • ‘We may find that the numbers of collectors are proportional to modern population size or we may not.’
    • ‘The amount produced is proportional to the cooking time and accumulates with a second and subsequent heating.’
    • ‘Broadly speaking biodiversity is proportional to the amount of area that you can develop it in.’
    • ‘Swords and knives, especially, were made to be directly proportional to the size of the user.’
    corresponding, proportionate, comparable, in proportion, pro rata, commensurate, equivalent, consistent, relative, correlated, correlative, analogous, analogical
    commensurable
    View synonyms
    1. 1.1Mathematics (of a variable quantity) having a constant ratio to another quantity.
      • ‘Edge lengths are proportional to inferred protein distances.’
      • ‘Gravitational force is inversely proportional to the square of the distance between two objects.’
      • ‘The ratio of the squares of the periods of two planets is directly proportional to the ratio of the cubes of the radii of their orbits.’
      • ‘Variances were assumed to be proportional to the square of the observed distances.’
      • ‘Instead the heat is inversely proportional to the square of the distance.’

Usage

Except in certain long-established phrases, such as proportional representation, the adjectives proportional and proportionate may be used interchangeably

Origin

Late Middle English: from late Latin proportionalis, from proportio(n-) (see proportion).

Pronunciation:

proportional

/prəˈpôrSH(ə)n(ə)l/