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Finding the Fourth Proportional to 254.55, 351.27 and 144.04

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Solution

The fourth proportional to 254.55, 351.27 and 144.04 is: 198.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.55 : 351.27 = 144.04 : x
  2. Step 2: Convert to fraction form
    254.55/351.27 = 144.04/x
  3. Step 3: Cross multiply
    254.55x = 351.27 × 144.04
  4. Step 4: Simplify right side
    254.55x = 50,596.93
  5. Step 5: Solve for x
    x = 50,596.93/254.55
  6. Step 6: Final answer
    x = 198.77

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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.