Finding the Fourth Proportional to 351,811.38, 527,717.07 and 85,572.08
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Solution
The fourth proportional to 351,811.38, 527,717.07 and 85,572.08 is: 128,358.12
Step by Step Solution
- Step 1: Write the proportion equation
351,811.38 : 527,717.07 = 85,572.08 : x - Step 2: Convert to fraction form
351,811.38/527,717.07 = 85,572.08/x - Step 3: Cross multiply
351,811.38x = 527,717.07 × 85,572.08 - Step 4: Simplify right side
351,811.38x = 45,157,847,331.41 - Step 5: Solve for x
x = 45,157,847,331.41/351,811.38 - Step 6: Final answer
x = 128,358.12
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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.