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Finding the Fourth Proportional to 173.27, 238.99 and 131.73

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Solution

The fourth proportional to 173.27, 238.99 and 131.73 is: 181.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    173.27 : 238.99 = 131.73 : x
  2. Step 2: Convert to fraction form
    173.27/238.99 = 131.73/x
  3. Step 3: Cross multiply
    173.27x = 238.99 × 131.73
  4. Step 4: Simplify right side
    173.27x = 31,480.96
  5. Step 5: Solve for x
    x = 31,480.96/173.27
  6. Step 6: Final answer
    x = 181.69

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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.