Home / 217,921.92-327,374.98-129,233.60

Finding the Fourth Proportional to 217,921.92, 327,374.98 and 129,233.60

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Solution

The fourth proportional to 217,921.92, 327,374.98 and 129,233.60 is: 194,142.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,921.92 : 327,374.98 = 129,233.60 : x
  2. Step 2: Convert to fraction form
    217,921.92/327,374.98 = 129,233.60/x
  3. Step 3: Cross multiply
    217,921.92x = 327,374.98 × 129,233.60
  4. Step 4: Simplify right side
    217,921.92x = 42,307,847,215.33
  5. Step 5: Solve for x
    x = 42,307,847,215.33/217,921.92
  6. Step 6: Final answer
    x = 194,142.23

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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.