Finding the Fourth Proportional to 418,170.12, 626,642.82 and 207,387.06
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Solution
The fourth proportional to 418,170.12, 626,642.82 and 207,387.06 is: 310,776.90
Step by Step Solution
- Step 1: Write the proportion equation
418,170.12 : 626,642.82 = 207,387.06 : x - Step 2: Convert to fraction form
418,170.12/626,642.82 = 207,387.06/x - Step 3: Cross multiply
418,170.12x = 626,642.82 × 207,387.06 - Step 4: Simplify right side
418,170.12x = 129,957,612,109.91 - Step 5: Solve for x
x = 129,957,612,109.91/418,170.12 - Step 6: Final answer
x = 310,776.90
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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.