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Finding the Fourth Proportional to 254.32, 379.28 and 241.60

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Solution

The fourth proportional to 254.32, 379.28 and 241.60 is: 360.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    254.32 : 379.28 = 241.60 : x
  2. Step 2: Convert to fraction form
    254.32/379.28 = 241.60/x
  3. Step 3: Cross multiply
    254.32x = 379.28 × 241.60
  4. Step 4: Simplify right side
    254.32x = 91,634.05
  5. Step 5: Solve for x
    x = 91,634.05/254.32
  6. Step 6: Final answer
    x = 360.31

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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.