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Finding the Fourth Proportional to 182.39, 273.85 and 74.39

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Solution

The fourth proportional to 182.39, 273.85 and 74.39 is: 111.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    182.39 : 273.85 = 74.39 : x
  2. Step 2: Convert to fraction form
    182.39/273.85 = 74.39/x
  3. Step 3: Cross multiply
    182.39x = 273.85 × 74.39
  4. Step 4: Simplify right side
    182.39x = 20,371.70
  5. Step 5: Solve for x
    x = 20,371.70/182.39
  6. Step 6: Final answer
    x = 111.69

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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.