Finding the Fourth Proportional to 371,891.07, 513,207.87 and 202,125.21
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Solution
The fourth proportional to 371,891.07, 513,207.87 and 202,125.21 is: 278,931.81
Step by Step Solution
- Step 1: Write the proportion equation
371,891.07 : 513,207.87 = 202,125.21 : x - Step 2: Convert to fraction form
371,891.07/513,207.87 = 202,125.21/x - Step 3: Cross multiply
371,891.07x = 513,207.87 × 202,125.21 - Step 4: Simplify right side
371,891.07x = 103,732,248,497.40 - Step 5: Solve for x
x = 103,732,248,497.40/371,891.07 - Step 6: Final answer
x = 278,931.81
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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.