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Finding the Fourth Proportional to 179.66, 269.08 and 130.75

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Solution

The fourth proportional to 179.66, 269.08 and 130.75 is: 195.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.66 : 269.08 = 130.75 : x
  2. Step 2: Convert to fraction form
    179.66/269.08 = 130.75/x
  3. Step 3: Cross multiply
    179.66x = 269.08 × 130.75
  4. Step 4: Simplify right side
    179.66x = 35,182.21
  5. Step 5: Solve for x
    x = 35,182.21/179.66
  6. Step 6: Final answer
    x = 195.83

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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.