Finding the Fourth Proportional to 406,470.15, 560,921.22 and 245,331.99
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Solution
The fourth proportional to 406,470.15, 560,921.22 and 245,331.99 is: 338,553.57
Step by Step Solution
- Step 1: Write the proportion equation
406,470.15 : 560,921.22 = 245,331.99 : x - Step 2: Convert to fraction form
406,470.15/560,921.22 = 245,331.99/x - Step 3: Cross multiply
406,470.15x = 560,921.22 × 245,331.99 - Step 4: Simplify right side
406,470.15x = 137,611,919,135.83 - Step 5: Solve for x
x = 137,611,919,135.83/406,470.15 - Step 6: Final answer
x = 338,553.57
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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.