Home / 422,261.30-633,397.44-137,949.68

Finding the Fourth Proportional to 422,261.30, 633,397.44 and 137,949.68

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Solution

The fourth proportional to 422,261.30, 633,397.44 and 137,949.68 is: 206,926.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,261.30 : 633,397.44 = 137,949.68 : x
  2. Step 2: Convert to fraction form
    422,261.30/633,397.44 = 137,949.68/x
  3. Step 3: Cross multiply
    422,261.30x = 633,397.44 × 137,949.68
  4. Step 4: Simplify right side
    422,261.30x = 87,376,974,160.82
  5. Step 5: Solve for x
    x = 87,376,974,160.82/422,261.30
  6. Step 6: Final answer
    x = 206,926.31

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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.