Finding the Fourth Proportional to 209,201.40, 288,675.90 and 124,306.92
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Solution
The fourth proportional to 209,201.40, 288,675.90 and 124,306.92 is: 171,530.46
Step by Step Solution
- Step 1: Write the proportion equation
209,201.40 : 288,675.90 = 124,306.92 : x - Step 2: Convert to fraction form
209,201.40/288,675.90 = 124,306.92/x - Step 3: Cross multiply
209,201.40x = 288,675.90 × 124,306.92 - Step 4: Simplify right side
209,201.40x = 35,884,412,007.23 - Step 5: Solve for x
x = 35,884,412,007.23/209,201.40 - Step 6: Final answer
x = 171,530.46
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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.