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Finding the Fourth Proportional to 381,493.79, 572,262.56 and 101,003.75

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Solution

The fourth proportional to 381,493.79, 572,262.56 and 101,003.75 is: 151,511.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,493.79 : 572,262.56 = 101,003.75 : x
  2. Step 2: Convert to fraction form
    381,493.79/572,262.56 = 101,003.75/x
  3. Step 3: Cross multiply
    381,493.79x = 572,262.56 × 101,003.75
  4. Step 4: Simplify right side
    381,493.79x = 57,800,664,544.60
  5. Step 5: Solve for x
    x = 57,800,664,544.60/381,493.79
  6. Step 6: Final answer
    x = 151,511.42

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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.