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Finding the Fourth Proportional to 254.22, 350.52 and 207.42

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Solution

The fourth proportional to 254.22, 350.52 and 207.42 is: 285.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.22 : 350.52 = 207.42 : x
  2. Step 2: Convert to fraction form
    254.22/350.52 = 207.42/x
  3. Step 3: Cross multiply
    254.22x = 350.52 × 207.42
  4. Step 4: Simplify right side
    254.22x = 72,704.86
  5. Step 5: Solve for x
    x = 72,704.86/254.22
  6. Step 6: Final answer
    x = 285.99

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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.