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Finding the Fourth Proportional to 252.48, 378.08 and 234.56

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Solution

The fourth proportional to 252.48, 378.08 and 234.56 is: 351.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.48 : 378.08 = 234.56 : x
  2. Step 2: Convert to fraction form
    252.48/378.08 = 234.56/x
  3. Step 3: Cross multiply
    252.48x = 378.08 × 234.56
  4. Step 4: Simplify right side
    252.48x = 88,682.44
  5. Step 5: Solve for x
    x = 88,682.44/252.48
  6. Step 6: Final answer
    x = 351.25

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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.