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Finding the Fourth Proportional to 132,396.48, 198,598.08 and 38,905.20

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Solution

The fourth proportional to 132,396.48, 198,598.08 and 38,905.20 is: 58,358.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,396.48 : 198,598.08 = 38,905.20 : x
  2. Step 2: Convert to fraction form
    132,396.48/198,598.08 = 38,905.20/x
  3. Step 3: Cross multiply
    132,396.48x = 198,598.08 × 38,905.20
  4. Step 4: Simplify right side
    132,396.48x = 7,726,498,022.02
  5. Step 5: Solve for x
    x = 7,726,498,022.02/132,396.48
  6. Step 6: Final answer
    x = 58,358.79

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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.