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Finding the Fourth Proportional to 254.41, 351.22 and 171.95

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Solution

The fourth proportional to 254.41, 351.22 and 171.95 is: 237.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.41 : 351.22 = 171.95 : x
  2. Step 2: Convert to fraction form
    254.41/351.22 = 171.95/x
  3. Step 3: Cross multiply
    254.41x = 351.22 × 171.95
  4. Step 4: Simplify right side
    254.41x = 60,392.28
  5. Step 5: Solve for x
    x = 60,392.28/254.41
  6. Step 6: Final answer
    x = 237.38

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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.