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Finding the Fourth Proportional to 267.52, 368.40 and 255.28

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Solution

The fourth proportional to 267.52, 368.40 and 255.28 is: 351.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.52 : 368.40 = 255.28 : x
  2. Step 2: Convert to fraction form
    267.52/368.40 = 255.28/x
  3. Step 3: Cross multiply
    267.52x = 368.40 × 255.28
  4. Step 4: Simplify right side
    267.52x = 94,045.15
  5. Step 5: Solve for x
    x = 94,045.15/267.52
  6. Step 6: Final answer
    x = 351.54

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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.