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Finding the Fourth Proportional to 575.22, 863.12 and 266.73

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Solution

The fourth proportional to 575.22, 863.12 and 266.73 is: 400.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    575.22 : 863.12 = 266.73 : x
  2. Step 2: Convert to fraction form
    575.22/863.12 = 266.73/x
  3. Step 3: Cross multiply
    575.22x = 863.12 × 266.73
  4. Step 4: Simplify right side
    575.22x = 230,215.68
  5. Step 5: Solve for x
    x = 230,215.68/575.22
  6. Step 6: Final answer
    x = 400.22

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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.