Finding the Fourth Proportional to 215,609.28, 297,549.84 and 120,115.92
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Solution
The fourth proportional to 215,609.28, 297,549.84 and 120,115.92 is: 165,765.00
Step by Step Solution
- Step 1: Write the proportion equation
215,609.28 : 297,549.84 = 120,115.92 : x - Step 2: Convert to fraction form
215,609.28/297,549.84 = 120,115.92/x - Step 3: Cross multiply
215,609.28x = 297,549.84 × 120,115.92 - Step 4: Simplify right side
215,609.28x = 35,740,472,777.45 - Step 5: Solve for x
x = 35,740,472,777.45/215,609.28 - Step 6: Final answer
x = 165,765.00
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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.