Finding the Fourth Proportional to 392,358.11, 541,381.87 and 239,360.99
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Solution
The fourth proportional to 392,358.11, 541,381.87 and 239,360.99 is: 330,274.05
Step by Step Solution
- Step 1: Write the proportion equation
392,358.11 : 541,381.87 = 239,360.99 : x - Step 2: Convert to fraction form
392,358.11/541,381.87 = 239,360.99/x - Step 3: Cross multiply
392,358.11x = 541,381.87 × 239,360.99 - Step 4: Simplify right side
392,358.11x = 129,585,700,371.25 - Step 5: Solve for x
x = 129,585,700,371.25/392,358.11 - Step 6: Final answer
x = 330,274.05
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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.