Home / 381,375.76-571,982.64-144,635.44

Finding the Fourth Proportional to 381,375.76, 571,982.64 and 144,635.44

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Solution

The fourth proportional to 381,375.76, 571,982.64 and 144,635.44 is: 216,922.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,375.76 : 571,982.64 = 144,635.44 : x
  2. Step 2: Convert to fraction form
    381,375.76/571,982.64 = 144,635.44/x
  3. Step 3: Cross multiply
    381,375.76x = 571,982.64 × 144,635.44
  4. Step 4: Simplify right side
    381,375.76x = 82,728,960,808.76
  5. Step 5: Solve for x
    x = 82,728,960,808.76/381,375.76
  6. Step 6: Final answer
    x = 216,922.44

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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.