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Finding the Fourth Proportional to 223.92, 308.43 and 171.37

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Solution

The fourth proportional to 223.92, 308.43 and 171.37 is: 236.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    223.92 : 308.43 = 171.37 : x
  2. Step 2: Convert to fraction form
    223.92/308.43 = 171.37/x
  3. Step 3: Cross multiply
    223.92x = 308.43 × 171.37
  4. Step 4: Simplify right side
    223.92x = 52,854.45
  5. Step 5: Solve for x
    x = 52,854.45/223.92
  6. Step 6: Final answer
    x = 236.05

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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.