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Finding the Fourth Proportional to 381,052.56, 571,961.57 and 338,635.69

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Solution

The fourth proportional to 381,052.56, 571,961.57 and 338,635.69 is: 508,293.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,052.56 : 571,961.57 = 338,635.69 : x
  2. Step 2: Convert to fraction form
    381,052.56/571,961.57 = 338,635.69/x
  3. Step 3: Cross multiply
    381,052.56x = 571,961.57 × 338,635.69
  4. Step 4: Simplify right side
    381,052.56x = 193,686,600,910.43
  5. Step 5: Solve for x
    x = 193,686,600,910.43/381,052.56
  6. Step 6: Final answer
    x = 508,293.66

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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.