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Finding the Fourth Proportional to 327.53, 451.89 and 194.69

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Solution

The fourth proportional to 327.53, 451.89 and 194.69 is: 268.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.53 : 451.89 = 194.69 : x
  2. Step 2: Convert to fraction form
    327.53/451.89 = 194.69/x
  3. Step 3: Cross multiply
    327.53x = 451.89 × 194.69
  4. Step 4: Simplify right side
    327.53x = 87,976.20
  5. Step 5: Solve for x
    x = 87,976.20/327.53
  6. Step 6: Final answer
    x = 268.61

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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.