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Finding the Fourth Proportional to 225.69, 338.75 and 164.54

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Solution

The fourth proportional to 225.69, 338.75 and 164.54 is: 246.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.69 : 338.75 = 164.54 : x
  2. Step 2: Convert to fraction form
    225.69/338.75 = 164.54/x
  3. Step 3: Cross multiply
    225.69x = 338.75 × 164.54
  4. Step 4: Simplify right side
    225.69x = 55,735.41
  5. Step 5: Solve for x
    x = 55,735.41/225.69
  6. Step 6: Final answer
    x = 246.96

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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.