What is fourth Proportional and Third proportional.

Find two number such that their mean proportional is 6 and third proportional 20.25.

Find the third proportion

a and b are two numbers such that their mean proportion is 6 and third proportion is 48. What is the value of a and b?

Find two numbers such that their mean proportional is 18 and the third proportional to them is 144.

What is the fourth proportional to 3,7 and 15 ?

what is the fourth proportion of 2,6 and 8 ?

What is the fourth proportional to 6, 24 and 83?

The fourth proportional to 4,7 and 20 is