Finding the Fourth Proportional to 284,149.68, 392,129.28 and 156,822.54
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Solution
The fourth proportional to 284,149.68, 392,129.28 and 156,822.54 is: 216,416.61
Step by Step Solution
- Step 1: Write the proportion equation
284,149.68 : 392,129.28 = 156,822.54 : x - Step 2: Convert to fraction form
284,149.68/392,129.28 = 156,822.54/x - Step 3: Cross multiply
284,149.68x = 392,129.28 × 156,822.54 - Step 4: Simplify right side
284,149.68x = 61,494,709,697.97 - Step 5: Solve for x
x = 61,494,709,697.97/284,149.68 - Step 6: Final answer
x = 216,416.61
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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.