Finding the Fourth Proportional to 381,709.70, 572,564.55 and 132,391.70
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Solution
The fourth proportional to 381,709.70, 572,564.55 and 132,391.70 is: 198,587.55
Step by Step Solution
- Step 1: Write the proportion equation
381,709.70 : 572,564.55 = 132,391.70 : x - Step 2: Convert to fraction form
381,709.70/572,564.55 = 132,391.70/x - Step 3: Cross multiply
381,709.70x = 572,564.55 × 132,391.70 - Step 4: Simplify right side
381,709.70x = 75,802,794,134.24 - Step 5: Solve for x
x = 75,802,794,134.24/381,709.70 - Step 6: Final answer
x = 198,587.55
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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.