Finding the Fourth Proportional to 291,627.18, 402,445.50 and 157,491.18
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Solution
The fourth proportional to 291,627.18, 402,445.50 and 157,491.18 is: 217,337.82
Step by Step Solution
- Step 1: Write the proportion equation
291,627.18 : 402,445.50 = 157,491.18 : x - Step 2: Convert to fraction form
291,627.18/402,445.50 = 157,491.18/x - Step 3: Cross multiply
291,627.18x = 402,445.50 × 157,491.18 - Step 4: Simplify right side
291,627.18x = 63,381,616,680.69 - Step 5: Solve for x
x = 63,381,616,680.69/291,627.18 - Step 6: Final answer
x = 217,337.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.