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Finding the Fourth Proportional to 633.36, 949.29 and 267.91

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Solution

The fourth proportional to 633.36, 949.29 and 267.91 is: 401.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.36 : 949.29 = 267.91 : x
  2. Step 2: Convert to fraction form
    633.36/949.29 = 267.91/x
  3. Step 3: Cross multiply
    633.36x = 949.29 × 267.91
  4. Step 4: Simplify right side
    633.36x = 254,324.28
  5. Step 5: Solve for x
    x = 254,324.28/633.36
  6. Step 6: Final answer
    x = 401.55

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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.