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Finding the Fourth Proportional to 629.72, 944.26 and 239.66

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Solution

The fourth proportional to 629.72, 944.26 and 239.66 is: 359.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    629.72 : 944.26 = 239.66 : x
  2. Step 2: Convert to fraction form
    629.72/944.26 = 239.66/x
  3. Step 3: Cross multiply
    629.72x = 944.26 × 239.66
  4. Step 4: Simplify right side
    629.72x = 226,301.35
  5. Step 5: Solve for x
    x = 226,301.35/629.72
  6. Step 6: Final answer
    x = 359.37

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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.