Finding the Fourth Proportional to 371,882.28, 513,197.61 and 202,116.42
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Solution
The fourth proportional to 371,882.28, 513,197.61 and 202,116.42 is: 278,920.69
Step by Step Solution
- Step 1: Write the proportion equation
371,882.28 : 513,197.61 = 202,116.42 : x - Step 2: Convert to fraction form
371,882.28/513,197.61 = 202,116.42/x - Step 3: Cross multiply
371,882.28x = 513,197.61 × 202,116.42 - Step 4: Simplify right side
371,882.28x = 103,725,663,685.76 - Step 5: Solve for x
x = 103,725,663,685.76/371,882.28 - Step 6: Final answer
x = 278,920.69
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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.