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Finding the Fourth Proportional to 173.24, 239.38 and 124.28

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Solution

The fourth proportional to 173.24, 239.38 and 124.28 is: 171.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.24 : 239.38 = 124.28 : x
  2. Step 2: Convert to fraction form
    173.24/239.38 = 124.28/x
  3. Step 3: Cross multiply
    173.24x = 239.38 × 124.28
  4. Step 4: Simplify right side
    173.24x = 29,750.15
  5. Step 5: Solve for x
    x = 29,750.15/173.24
  6. Step 6: Final answer
    x = 171.73

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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.