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Finding the Fourth Proportional to 173.41, 239.20 and 114.43

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Solution

The fourth proportional to 173.41, 239.20 and 114.43 is: 157.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.41 : 239.20 = 114.43 : x
  2. Step 2: Convert to fraction form
    173.41/239.20 = 114.43/x
  3. Step 3: Cross multiply
    173.41x = 239.20 × 114.43
  4. Step 4: Simplify right side
    173.41x = 27,371.86
  5. Step 5: Solve for x
    x = 27,371.86/173.41
  6. Step 6: Final answer
    x = 157.85

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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.