Finding the Fourth Proportional to 381,704.70, 572,557.05 and 132,386.70
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Solution
The fourth proportional to 381,704.70, 572,557.05 and 132,386.70 is: 198,580.05
Step by Step Solution
- Step 1: Write the proportion equation
381,704.70 : 572,557.05 = 132,386.70 : x - Step 2: Convert to fraction form
381,704.70/572,557.05 = 132,386.70/x - Step 3: Cross multiply
381,704.70x = 572,557.05 × 132,386.70 - Step 4: Simplify right side
381,704.70x = 75,798,938,411.24 - Step 5: Solve for x
x = 75,798,938,411.24/381,704.70 - Step 6: Final answer
x = 198,580.05
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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.