Finding the Fourth Proportional to 209,193.94, 288,687.68 and 113,700.65
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Solution
The fourth proportional to 209,193.94, 288,687.68 and 113,700.65 is: 156,906.92
Step by Step Solution
- Step 1: Write the proportion equation
209,193.94 : 288,687.68 = 113,700.65 : x - Step 2: Convert to fraction form
209,193.94/288,687.68 = 113,700.65/x - Step 3: Cross multiply
209,193.94x = 288,687.68 × 113,700.65 - Step 4: Simplify right side
209,193.94x = 32,823,976,862.99 - Step 5: Solve for x
x = 32,823,976,862.99/209,193.94 - Step 6: Final answer
x = 156,906.92
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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.