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Finding the Fourth Proportional to 254.32, 352.67 and 247.66

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Solution

The fourth proportional to 254.32, 352.67 and 247.66 is: 343.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.32 : 352.67 = 247.66 : x
  2. Step 2: Convert to fraction form
    254.32/352.67 = 247.66/x
  3. Step 3: Cross multiply
    254.32x = 352.67 × 247.66
  4. Step 4: Simplify right side
    254.32x = 87,342.25
  5. Step 5: Solve for x
    x = 87,342.25/254.32
  6. Step 6: Final answer
    x = 343.43

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.