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Finding the Fourth Proportional to 575.73, 863.61 and 267.86

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Solution

The fourth proportional to 575.73, 863.61 and 267.86 is: 401.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.73 : 863.61 = 267.86 : x
  2. Step 2: Convert to fraction form
    575.73/863.61 = 267.86/x
  3. Step 3: Cross multiply
    575.73x = 863.61 × 267.86
  4. Step 4: Simplify right side
    575.73x = 231,324.38
  5. Step 5: Solve for x
    x = 231,324.38/575.73
  6. Step 6: Final answer
    x = 401.79

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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.