Home / 327,155.04-490,767.75-137,634.72

Finding the Fourth Proportional to 327,155.04, 490,767.75 and 137,634.72

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Solution

The fourth proportional to 327,155.04, 490,767.75 and 137,634.72 is: 206,466.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,155.04 : 490,767.75 = 137,634.72 : x
  2. Step 2: Convert to fraction form
    327,155.04/490,767.75 = 137,634.72/x
  3. Step 3: Cross multiply
    327,155.04x = 490,767.75 × 137,634.72
  4. Step 4: Simplify right side
    327,155.04x = 67,546,681,856.28
  5. Step 5: Solve for x
    x = 67,546,681,856.28/327,155.04
  6. Step 6: Final answer
    x = 206,466.88

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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.