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Finding the Fourth Proportional to 629.20, 868.50 and 367.27

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Solution

The fourth proportional to 629.20, 868.50 and 367.27 is: 506.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.20 : 868.50 = 367.27 : x
  2. Step 2: Convert to fraction form
    629.20/868.50 = 367.27/x
  3. Step 3: Cross multiply
    629.20x = 868.50 × 367.27
  4. Step 4: Simplify right side
    629.20x = 318,974.00
  5. Step 5: Solve for x
    x = 318,974.00/629.20
  6. Step 6: Final answer
    x = 506.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.