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Finding the Fourth Proportional to 180.05, 269.84 and 93.18

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Solution

The fourth proportional to 180.05, 269.84 and 93.18 is: 139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.05 : 269.84 = 93.18 : x
  2. Step 2: Convert to fraction form
    180.05/269.84 = 93.18/x
  3. Step 3: Cross multiply
    180.05x = 269.84 × 93.18
  4. Step 4: Simplify right side
    180.05x = 25,143.69
  5. Step 5: Solve for x
    x = 25,143.69/180.05
  6. Step 6: Final answer
    x = 139.65

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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.