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Finding the Fourth Proportional to 225.48, 311.25 and 166.37

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Solution

The fourth proportional to 225.48, 311.25 and 166.37 is: 229.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.48 : 311.25 = 166.37 : x
  2. Step 2: Convert to fraction form
    225.48/311.25 = 166.37/x
  3. Step 3: Cross multiply
    225.48x = 311.25 × 166.37
  4. Step 4: Simplify right side
    225.48x = 51,781.11
  5. Step 5: Solve for x
    x = 51,781.11/225.48
  6. Step 6: Final answer
    x = 229.65

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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.