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Finding the Fourth Proportional to 273.96, 410.61 and 136.71

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Solution

The fourth proportional to 273.96, 410.61 and 136.71 is: 204.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.96 : 410.61 = 136.71 : x
  2. Step 2: Convert to fraction form
    273.96/410.61 = 136.71/x
  3. Step 3: Cross multiply
    273.96x = 410.61 × 136.71
  4. Step 4: Simplify right side
    273.96x = 56,134.49
  5. Step 5: Solve for x
    x = 56,134.49/273.96
  6. Step 6: Final answer
    x = 204.90

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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.