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Finding the Fourth Proportional to 381,270.28, 571,993.28 and 131,952.28

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Solution

The fourth proportional to 381,270.28, 571,993.28 and 131,952.28 is: 197,958.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,270.28 : 571,993.28 = 131,952.28 : x
  2. Step 2: Convert to fraction form
    381,270.28/571,993.28 = 131,952.28/x
  3. Step 3: Cross multiply
    381,270.28x = 571,993.28 × 131,952.28
  4. Step 4: Simplify right side
    381,270.28x = 75,475,817,440.68
  5. Step 5: Solve for x
    x = 75,475,817,440.68/381,270.28
  6. Step 6: Final answer
    x = 197,958.83

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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.