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Finding the Fourth Proportional to 496.29, 744.26 and 221.88

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Solution

The fourth proportional to 496.29, 744.26 and 221.88 is: 332.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    496.29 : 744.26 = 221.88 : x
  2. Step 2: Convert to fraction form
    496.29/744.26 = 221.88/x
  3. Step 3: Cross multiply
    496.29x = 744.26 × 221.88
  4. Step 4: Simplify right side
    496.29x = 165,135.30
  5. Step 5: Solve for x
    x = 165,135.30/496.29
  6. Step 6: Final answer
    x = 332.74

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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.