Finding the Fourth Proportional to 209,170.97, 288,658.16 and 113,677.65
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Solution
The fourth proportional to 209,170.97, 288,658.16 and 113,677.65 is: 156,876.37
Step by Step Solution
- Step 1: Write the proportion equation
209,170.97 : 288,658.16 = 113,677.65 : x - Step 2: Convert to fraction form
209,170.97/288,658.16 = 113,677.65/x - Step 3: Cross multiply
209,170.97x = 288,658.16 × 113,677.65 - Step 4: Simplify right side
209,170.97x = 32,813,980,713.74 - Step 5: Solve for x
x = 32,813,980,713.74/209,170.97 - Step 6: Final answer
x = 156,876.37
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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.