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Finding the Fourth Proportional to 272.75, 376.42 and 169.27

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Solution

The fourth proportional to 272.75, 376.42 and 169.27 is: 233.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.75 : 376.42 = 169.27 : x
  2. Step 2: Convert to fraction form
    272.75/376.42 = 169.27/x
  3. Step 3: Cross multiply
    272.75x = 376.42 × 169.27
  4. Step 4: Simplify right side
    272.75x = 63,716.61
  5. Step 5: Solve for x
    x = 63,716.61/272.75
  6. Step 6: Final answer
    x = 233.61

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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.