Finding the Fourth Proportional to 209,250.87, 288,769.49 and 113,757.94
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Solution
The fourth proportional to 209,250.87, 288,769.49 and 113,757.94 is: 156,987.75
Step by Step Solution
- Step 1: Write the proportion equation
209,250.87 : 288,769.49 = 113,757.94 : x - Step 2: Convert to fraction form
209,250.87/288,769.49 = 113,757.94/x - Step 3: Cross multiply
209,250.87x = 288,769.49 × 113,757.94 - Step 4: Simplify right side
209,250.87x = 32,849,822,317.25 - Step 5: Solve for x
x = 32,849,822,317.25/209,250.87 - Step 6: Final answer
x = 156,987.75
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1.5x scale
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.