Home / 327,443.34-491,353.32-137,888.76

Finding the Fourth Proportional to 327,443.34, 491,353.32 and 137,888.76

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Solution

The fourth proportional to 327,443.34, 491,353.32 and 137,888.76 is: 206,912.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,443.34 : 491,353.32 = 137,888.76 : x
  2. Step 2: Convert to fraction form
    327,443.34/491,353.32 = 137,888.76/x
  3. Step 3: Cross multiply
    327,443.34x = 491,353.32 × 137,888.76
  4. Step 4: Simplify right side
    327,443.34x = 67,752,100,016.68
  5. Step 5: Solve for x
    x = 67,752,100,016.68/327,443.34
  6. Step 6: Final answer
    x = 206,912.44

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1.5x scale

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.