Answer: Hello, a proportional relationship is a relationship where a quantity is proportional to other.
This means that, for example, if the number Y is proportional to the number X, means that the number Y is k times the number X, where k is the constant of proportionality.
This is represented in the next way: Y= k*X
then, if k = 1/5, our relationship is : Y = (1/5)*X.
