Finding the Fourth Proportional to 290,937.40, 436,622.42 and 216,231.48
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Solution
The fourth proportional to 290,937.40, 436,622.42 and 216,231.48 is: 324,507.99
Step by Step Solution
- Step 1: Write the proportion equation
290,937.40 : 436,622.42 = 216,231.48 : x - Step 2: Convert to fraction form
290,937.40/436,622.42 = 216,231.48/x - Step 3: Cross multiply
290,937.40x = 436,622.42 × 216,231.48 - Step 4: Simplify right side
290,937.40x = 94,411,512,077.78 - Step 5: Solve for x
x = 94,411,512,077.78/290,937.40 - Step 6: Final answer
x = 324,507.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.