Find four geometric means between 25 and 800.

50, 125, 275, 450

50, 150, 450, 750

50, 100, 200, 400

75, 150, 300, 750

Question

Find four geometric means between 25 and 800.
 	
	
50, 125, 275, 450
	
50, 150, 450, 750
	
50, 100, 200, 400
	
75, 150, 300, 750

aum · Answer

They are asking for a geometric sequence such that the first term is 25, then four more terms, and the the sixth term is 800

25    __?__    __?__    __?__    __?__    800

In the first three answer choices, the second term is 50.
The first term is give as 25.
The common ratio is 50/25 = 2
Use this common ratio to find the third, fourth and fifth term and see which answer fits.