Home / 257,440.20-386,160.30-162,961.80

Finding the Fourth Proportional to 257,440.20, 386,160.30 and 162,961.80

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Solution

The fourth proportional to 257,440.20, 386,160.30 and 162,961.80 is: 244,442.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,440.20 : 386,160.30 = 162,961.80 : x
  2. Step 2: Convert to fraction form
    257,440.20/386,160.30 = 162,961.80/x
  3. Step 3: Cross multiply
    257,440.20x = 386,160.30 × 162,961.80
  4. Step 4: Simplify right side
    257,440.20x = 62,929,377,576.54
  5. Step 5: Solve for x
    x = 62,929,377,576.54/257,440.20
  6. Step 6: Final answer
    x = 244,442.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.