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Finding the Fourth Proportional to 273.27, 409.90 and 110.91

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Solution

The fourth proportional to 273.27, 409.90 and 110.91 is: 166.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.27 : 409.90 = 110.91 : x
  2. Step 2: Convert to fraction form
    273.27/409.90 = 110.91/x
  3. Step 3: Cross multiply
    273.27x = 409.90 × 110.91
  4. Step 4: Simplify right side
    273.27x = 45,459.40
  5. Step 5: Solve for x
    x = 45,459.40/273.27
  6. Step 6: Final answer
    x = 166.36

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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.