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Finding the Fourth Proportional to 180.29, 269.50 and 134.21

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Solution

The fourth proportional to 180.29, 269.50 and 134.21 is: 200.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.29 : 269.50 = 134.21 : x
  2. Step 2: Convert to fraction form
    180.29/269.50 = 134.21/x
  3. Step 3: Cross multiply
    180.29x = 269.50 × 134.21
  4. Step 4: Simplify right side
    180.29x = 36,169.60
  5. Step 5: Solve for x
    x = 36,169.60/180.29
  6. Step 6: Final answer
    x = 200.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.