proportion

/prəˈpɔːʃən/ noun

Definition

› [C] a part of a total number or amount: Children make up a large proportion of the world's population. The class consists of both men and women in roughly equal proportions.

out of proportion › If something is out of proportion, it is much bigger or smaller than it should be, when compared to other things: The punishment is completely out of proportion to the crime.

in proportion › If something is in proportion, it is the right size or shape when compared to other things.

in proportion to › If something changes in proportion to another thing, it changes to the same degree as that thing: Your tax payment increases in proportion to your salary.

(Definition of proportion noun from the Cambridge Learner's Dictionary © Cambridge University Press)