Finding the Fourth Proportional to 371,909.48, 513,232.52 and 202,143.60
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Solution
The fourth proportional to 371,909.48, 513,232.52 and 202,143.60 is: 278,956.78
Step by Step Solution
- Step 1: Write the proportion equation
371,909.48 : 513,232.52 = 202,143.60 : x - Step 2: Convert to fraction form
371,909.48/513,232.52 = 202,143.60/x - Step 3: Cross multiply
371,909.48x = 513,232.52 × 202,143.60 - Step 4: Simplify right side
371,909.48x = 103,746,669,229.87 - Step 5: Solve for x
x = 103,746,669,229.87/371,909.48 - Step 6: Final answer
x = 278,956.78
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.