Finding the Fourth Proportional to 381,251.22, 571,878.99 and 100,765.50
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Solution
The fourth proportional to 381,251.22, 571,878.99 and 100,765.50 is: 151,148.82
Step by Step Solution
- Step 1: Write the proportion equation
381,251.22 : 571,878.99 = 100,765.50 : x - Step 2: Convert to fraction form
381,251.22/571,878.99 = 100,765.50/x - Step 3: Cross multiply
381,251.22x = 571,878.99 × 100,765.50 - Step 4: Simplify right side
381,251.22x = 57,625,672,366.85 - Step 5: Solve for x
x = 57,625,672,366.85/381,251.22 - Step 6: Final answer
x = 151,148.82
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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.