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Finding the Fourth Proportional to 179.64, 269.38 and 125.56

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Solution

The fourth proportional to 179.64, 269.38 and 125.56 is: 188.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.64 : 269.38 = 125.56 : x
  2. Step 2: Convert to fraction form
    179.64/269.38 = 125.56/x
  3. Step 3: Cross multiply
    179.64x = 269.38 × 125.56
  4. Step 4: Simplify right side
    179.64x = 33,823.35
  5. Step 5: Solve for x
    x = 33,823.35/179.64
  6. Step 6: Final answer
    x = 188.28

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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.