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Finding the Fourth Proportional to 252.11, 377.46 and 231.46

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Solution

The fourth proportional to 252.11, 377.46 and 231.46 is: 346.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.11 : 377.46 = 231.46 : x
  2. Step 2: Convert to fraction form
    252.11/377.46 = 231.46/x
  3. Step 3: Cross multiply
    252.11x = 377.46 × 231.46
  4. Step 4: Simplify right side
    252.11x = 87,365.95
  5. Step 5: Solve for x
    x = 87,365.95/252.11
  6. Step 6: Final answer
    x = 346.54

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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.