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Finding the Fourth Proportional to 254.40, 351.48 and 234.96

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Solution

The fourth proportional to 254.40, 351.48 and 234.96 is: 324.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.40 : 351.48 = 234.96 : x
  2. Step 2: Convert to fraction form
    254.40/351.48 = 234.96/x
  3. Step 3: Cross multiply
    254.40x = 351.48 × 234.96
  4. Step 4: Simplify right side
    254.40x = 82,583.74
  5. Step 5: Solve for x
    x = 82,583.74/254.40
  6. Step 6: Final answer
    x = 324.62

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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.