Question

find the mean propotion of 5 and 20​

Answer 1

Step-by-step explanation:

Let the mean proportion is , X

5:X::X:20P

roduct of outer term= product of means term

5×20=X×X

100= X²

X²= 100

X= √100

X= 10Answer. ( Put the value of x)

5:10::10:20

Product of outer term= product of means term

5×20=10×10

100=100

both sides value is equal so it is a proportion.

Answer 2

Answer:

1:4

Step-by-step explanation:

if we divide 5 and 20 by 5 we found that it gives 1:4