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Finding the Fourth Proportional to 220,442.43, 304,234.34 and 124,938.87

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Solution

The fourth proportional to 220,442.43, 304,234.34 and 124,938.87 is: 172,429.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,442.43 : 304,234.34 = 124,938.87 : x
  2. Step 2: Convert to fraction form
    220,442.43/304,234.34 = 124,938.87/x
  3. Step 3: Cross multiply
    220,442.43x = 304,234.34 × 124,938.87
  4. Step 4: Simplify right side
    220,442.43x = 38,010,692,508.93
  5. Step 5: Solve for x
    x = 38,010,692,508.93/220,442.43
  6. Step 6: Final answer
    x = 172,429.12

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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.