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Finding the Fourth Proportional to 173.22, 238.97 and 124.17

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Solution

The fourth proportional to 173.22, 238.97 and 124.17 is: 171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.22 : 238.97 = 124.17 : x
  2. Step 2: Convert to fraction form
    173.22/238.97 = 124.17/x
  3. Step 3: Cross multiply
    173.22x = 238.97 × 124.17
  4. Step 4: Simplify right side
    173.22x = 29,672.90
  5. Step 5: Solve for x
    x = 29,672.90/173.22
  6. Step 6: Final answer
    x = 171.30

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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.