Finding the Fourth Proportional to 381,798.26, 572,771.05 and 145,122.44
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Solution
The fourth proportional to 381,798.26, 572,771.05 and 145,122.44 is: 217,711.65
Step by Step Solution
- Step 1: Write the proportion equation
381,798.26 : 572,771.05 = 145,122.44 : x - Step 2: Convert to fraction form
381,798.26/572,771.05 = 145,122.44/x - Step 3: Cross multiply
381,798.26x = 572,771.05 × 145,122.44 - Step 4: Simplify right side
381,798.26x = 83,121,929,110.70 - Step 5: Solve for x
x = 83,121,929,110.70/381,798.26 - Step 6: Final answer
x = 217,711.65
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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.