Finding the Fourth Proportional to 284,060.74, 392,011.97 and 156,744.53
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Solution
The fourth proportional to 284,060.74, 392,011.97 and 156,744.53 is: 216,311.95
Step by Step Solution
- Step 1: Write the proportion equation
284,060.74 : 392,011.97 = 156,744.53 : x - Step 2: Convert to fraction form
284,060.74/392,011.97 = 156,744.53/x - Step 3: Cross multiply
284,060.74x = 392,011.97 × 156,744.53 - Step 4: Simplify right side
284,060.74x = 61,445,732,188.33 - Step 5: Solve for x
x = 61,445,732,188.33/284,060.74 - Step 6: Final answer
x = 216,311.95
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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.