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Finding the Fourth Proportional to 272.56, 408.96 and 150.76

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Solution

The fourth proportional to 272.56, 408.96 and 150.76 is: 226.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    272.56 : 408.96 = 150.76 : x
  2. Step 2: Convert to fraction form
    272.56/408.96 = 150.76/x
  3. Step 3: Cross multiply
    272.56x = 408.96 × 150.76
  4. Step 4: Simplify right side
    272.56x = 61,654.81
  5. Step 5: Solve for x
    x = 61,654.81/272.56
  6. Step 6: Final answer
    x = 226.21

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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.