Home / 385,540.92-532,046.36-215,775.04

Finding the Fourth Proportional to 385,540.92, 532,046.36 and 215,775.04

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Solution

The fourth proportional to 385,540.92, 532,046.36 and 215,775.04 is: 297,769.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,540.92 : 532,046.36 = 215,775.04 : x
  2. Step 2: Convert to fraction form
    385,540.92/532,046.36 = 215,775.04/x
  3. Step 3: Cross multiply
    385,540.92x = 532,046.36 × 215,775.04
  4. Step 4: Simplify right side
    385,540.92x = 114,802,324,610.85
  5. Step 5: Solve for x
    x = 114,802,324,610.85/385,540.92
  6. Step 6: Final answer
    x = 297,769.49

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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.