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Finding the Fourth Proportional to 254.42, 353.46 and 251.93

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Solution

The fourth proportional to 254.42, 353.46 and 251.93 is: 349.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.42 : 353.46 = 251.93 : x
  2. Step 2: Convert to fraction form
    254.42/353.46 = 251.93/x
  3. Step 3: Cross multiply
    254.42x = 353.46 × 251.93
  4. Step 4: Simplify right side
    254.42x = 89,047.02
  5. Step 5: Solve for x
    x = 89,047.02/254.42
  6. Step 6: Final answer
    x = 349.99

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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.