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Finding the Fourth Proportional to 272.75, 409.41 and 110.54

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Solution

The fourth proportional to 272.75, 409.41 and 110.54 is: 165.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.75 : 409.41 = 110.54 : x
  2. Step 2: Convert to fraction form
    272.75/409.41 = 110.54/x
  3. Step 3: Cross multiply
    272.75x = 409.41 × 110.54
  4. Step 4: Simplify right side
    272.75x = 45,254.13
  5. Step 5: Solve for x
    x = 45,254.13/272.75
  6. Step 6: Final answer
    x = 165.92

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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.