Finding the Fourth Proportional to 381,392.62, 572,273.25 and 156,918.70
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Solution
The fourth proportional to 381,392.62, 572,273.25 and 156,918.70 is: 235,453.89
Step by Step Solution
- Step 1: Write the proportion equation
381,392.62 : 572,273.25 = 156,918.70 : x - Step 2: Convert to fraction form
381,392.62/572,273.25 = 156,918.70/x - Step 3: Cross multiply
381,392.62x = 572,273.25 × 156,918.70 - Step 4: Simplify right side
381,392.62x = 89,800,374,434.78 - Step 5: Solve for x
x = 89,800,374,434.78/381,392.62 - Step 6: Final answer
x = 235,453.89
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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.