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Finding the Fourth Proportional to 327.28, 491 and 110.86

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Solution

The fourth proportional to 327.28, 491 and 110.86 is: 166.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.28 : 491 = 110.86 : x
  2. Step 2: Convert to fraction form
    327.28/491 = 110.86/x
  3. Step 3: Cross multiply
    327.28x = 491 × 110.86
  4. Step 4: Simplify right side
    327.28x = 54,432.26
  5. Step 5: Solve for x
    x = 54,432.26/327.28
  6. Step 6: Final answer
    x = 166.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.