Finding the Fourth Proportional to 381,572.10, 572,358.15 and 115,373.70
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Solution
The fourth proportional to 381,572.10, 572,358.15 and 115,373.70 is: 173,060.55
Step by Step Solution
- Step 1: Write the proportion equation
381,572.10 : 572,358.15 = 115,373.70 : x - Step 2: Convert to fraction form
381,572.10/572,358.15 = 115,373.70/x - Step 3: Cross multiply
381,572.10x = 572,358.15 × 115,373.70 - Step 4: Simplify right side
381,572.10x = 66,035,077,490.66 - Step 5: Solve for x
x = 66,035,077,490.66/381,572.10 - Step 6: Final answer
x = 173,060.55
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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.