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Finding the Fourth Proportional to 381,373.35, 571,997.44 and 141,430.92

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Solution

The fourth proportional to 381,373.35, 571,997.44 and 141,430.92 is: 212,123.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,373.35 : 571,997.44 = 141,430.92 : x
  2. Step 2: Convert to fraction form
    381,373.35/571,997.44 = 141,430.92/x
  3. Step 3: Cross multiply
    381,373.35x = 571,997.44 × 141,430.92
  4. Step 4: Simplify right side
    381,373.35x = 80,898,122,208.64
  5. Step 5: Solve for x
    x = 80,898,122,208.64/381,373.35
  6. Step 6: Final answer
    x = 212,123.17

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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.