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Finding the Fourth Proportional to 381,105.80, 571,658.73 and 100,625.48

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Solution

The fourth proportional to 381,105.80, 571,658.73 and 100,625.48 is: 150,938.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,105.80 : 571,658.73 = 100,625.48 : x
  2. Step 2: Convert to fraction form
    381,105.80/571,658.73 = 100,625.48/x
  3. Step 3: Cross multiply
    381,105.80x = 571,658.73 × 100,625.48
  4. Step 4: Simplify right side
    381,105.80x = 57,523,434,102.44
  5. Step 5: Solve for x
    x = 57,523,434,102.44/381,105.80
  6. Step 6: Final answer
    x = 150,938.23

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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.