Finding the Fourth Proportional to 280,760.14, 387,449.03 and 159,912.68
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Solution
The fourth proportional to 280,760.14, 387,449.03 and 159,912.68 is: 220,679.52
Step by Step Solution
- Step 1: Write the proportion equation
280,760.14 : 387,449.03 = 159,912.68 : x - Step 2: Convert to fraction form
280,760.14/387,449.03 = 159,912.68/x - Step 3: Cross multiply
280,760.14x = 387,449.03 × 159,912.68 - Step 4: Simplify right side
280,760.14x = 61,958,011,213.24 - Step 5: Solve for x
x = 61,958,011,213.24/280,760.14 - Step 6: Final answer
x = 220,679.52
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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.