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Finding the Fourth Proportional to 254.24, 379.56 and 233.92

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Solution

The fourth proportional to 254.24, 379.56 and 233.92 is: 349.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.24 : 379.56 = 233.92 : x
  2. Step 2: Convert to fraction form
    254.24/379.56 = 233.92/x
  3. Step 3: Cross multiply
    254.24x = 379.56 × 233.92
  4. Step 4: Simplify right side
    254.24x = 88,786.68
  5. Step 5: Solve for x
    x = 88,786.68/254.24
  6. Step 6: Final answer
    x = 349.22

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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.