Finding the Fourth Proportional to 209,103.28, 288,562.84 and 113,609.94
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Solution
The fourth proportional to 209,103.28, 288,562.84 and 113,609.94 is: 156,781.89
Step by Step Solution
- Step 1: Write the proportion equation
209,103.28 : 288,562.84 = 113,609.94 : x - Step 2: Convert to fraction form
209,103.28/288,562.84 = 113,609.94/x - Step 3: Cross multiply
209,103.28x = 288,562.84 × 113,609.94 - Step 4: Simplify right side
209,103.28x = 32,783,606,938.63 - Step 5: Solve for x
x = 32,783,606,938.63/209,103.28 - Step 6: Final answer
x = 156,781.89
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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.