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Finding the Fourth Proportional to 629.24, 868.36 and 367.24

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Solution

The fourth proportional to 629.24, 868.36 and 367.24 is: 506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.24 : 868.36 = 367.24 : x
  2. Step 2: Convert to fraction form
    629.24/868.36 = 367.24/x
  3. Step 3: Cross multiply
    629.24x = 868.36 × 367.24
  4. Step 4: Simplify right side
    629.24x = 318,896.53
  5. Step 5: Solve for x
    x = 318,896.53/629.24
  6. Step 6: Final answer
    x = 506.80

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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.