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Finding the Fourth Proportional to 254.58, 379.46 and 252.12

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Solution

The fourth proportional to 254.58, 379.46 and 252.12 is: 375.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.58 : 379.46 = 252.12 : x
  2. Step 2: Convert to fraction form
    254.58/379.46 = 252.12/x
  3. Step 3: Cross multiply
    254.58x = 379.46 × 252.12
  4. Step 4: Simplify right side
    254.58x = 95,668.19
  5. Step 5: Solve for x
    x = 95,668.19/254.58
  6. Step 6: Final answer
    x = 375.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.