Finding the Fourth Proportional to 209,197.25, 288,694.11 and 113,704.17
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Solution
The fourth proportional to 209,197.25, 288,694.11 and 113,704.17 is: 156,912.79
Step by Step Solution
- Step 1: Write the proportion equation
209,197.25 : 288,694.11 = 113,704.17 : x - Step 2: Convert to fraction form
209,197.25/288,694.11 = 113,704.17/x - Step 3: Cross multiply
209,197.25x = 288,694.11 × 113,704.17 - Step 4: Simplify right side
209,197.25x = 32,825,724,489.54 - Step 5: Solve for x
x = 32,825,724,489.54/209,197.25 - Step 6: Final answer
x = 156,912.79
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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.