Home / 239,067.12-329,775-149,487.60

Finding the Fourth Proportional to 239,067.12, 329,775 and 149,487.60

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Solution

The fourth proportional to 239,067.12, 329,775 and 149,487.60 is: 206,206.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,067.12 : 329,775 = 149,487.60 : x
  2. Step 2: Convert to fraction form
    239,067.12/329,775 = 149,487.60/x
  3. Step 3: Cross multiply
    239,067.12x = 329,775 × 149,487.60
  4. Step 4: Simplify right side
    239,067.12x = 49,297,273,290
  5. Step 5: Solve for x
    x = 49,297,273,290/239,067.12
  6. Step 6: Final answer
    x = 206,206.83

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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.