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Finding the Fourth Proportional to 224.13, 309.25 and 171.73

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Solution

The fourth proportional to 224.13, 309.25 and 171.73 is: 236.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.13 : 309.25 = 171.73 : x
  2. Step 2: Convert to fraction form
    224.13/309.25 = 171.73/x
  3. Step 3: Cross multiply
    224.13x = 309.25 × 171.73
  4. Step 4: Simplify right side
    224.13x = 53,108.10
  5. Step 5: Solve for x
    x = 53,108.10/224.13
  6. Step 6: Final answer
    x = 236.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.