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Finding the Fourth Proportional to 225.75, 338.41 and 160.54

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Solution

The fourth proportional to 225.75, 338.41 and 160.54 is: 240.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.75 : 338.41 = 160.54 : x
  2. Step 2: Convert to fraction form
    225.75/338.41 = 160.54/x
  3. Step 3: Cross multiply
    225.75x = 338.41 × 160.54
  4. Step 4: Simplify right side
    225.75x = 54,328.34
  5. Step 5: Solve for x
    x = 54,328.34/225.75
  6. Step 6: Final answer
    x = 240.66

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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.