Finding the Fourth Proportional to 371,387.68, 512,517.10 and 218,432.29
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Solution
The fourth proportional to 371,387.68, 512,517.10 and 218,432.29 is: 301,437.80
Step by Step Solution
- Step 1: Write the proportion equation
371,387.68 : 512,517.10 = 218,432.29 : x - Step 2: Convert to fraction form
371,387.68/512,517.10 = 218,432.29/x - Step 3: Cross multiply
371,387.68x = 512,517.10 × 218,432.29 - Step 4: Simplify right side
371,387.68x = 111,950,283,817.16 - Step 5: Solve for x
x = 111,950,283,817.16/371,387.68 - Step 6: Final answer
x = 301,437.80
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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.