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Finding the Fourth Proportional to 633.53, 949.75 and 268.57

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Solution

The fourth proportional to 633.53, 949.75 and 268.57 is: 402.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    633.53 : 949.75 = 268.57 : x
  2. Step 2: Convert to fraction form
    633.53/949.75 = 268.57/x
  3. Step 3: Cross multiply
    633.53x = 949.75 × 268.57
  4. Step 4: Simplify right side
    633.53x = 255,078.30
  5. Step 5: Solve for x
    x = 255,078.30/633.53
  6. Step 6: Final answer
    x = 402.63

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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.