Finding the Fourth Proportional to 284,707.53, 392,881.05 and 157,375.53
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Solution
The fourth proportional to 284,707.53, 392,881.05 and 157,375.53 is: 217,169.75
Step by Step Solution
- Step 1: Write the proportion equation
284,707.53 : 392,881.05 = 157,375.53 : x - Step 2: Convert to fraction form
284,707.53/392,881.05 = 157,375.53/x - Step 3: Cross multiply
284,707.53x = 392,881.05 × 157,375.53 - Step 4: Simplify right side
284,707.53x = 61,829,863,470.71 - Step 5: Solve for x
x = 61,829,863,470.71/284,707.53 - Step 6: Final answer
x = 217,169.75
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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.