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Finding the Fourth Proportional to 254.68, 382.02 and 168.56

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Solution

The fourth proportional to 254.68, 382.02 and 168.56 is: 252.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.68 : 382.02 = 168.56 : x
  2. Step 2: Convert to fraction form
    254.68/382.02 = 168.56/x
  3. Step 3: Cross multiply
    254.68x = 382.02 × 168.56
  4. Step 4: Simplify right side
    254.68x = 64,393.29
  5. Step 5: Solve for x
    x = 64,393.29/254.68
  6. Step 6: Final answer
    x = 252.84

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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.