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Finding the Fourth Proportional to 263.36, 363.52 and 249.60

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Solution

The fourth proportional to 263.36, 363.52 and 249.60 is: 344.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.36 : 363.52 = 249.60 : x
  2. Step 2: Convert to fraction form
    263.36/363.52 = 249.60/x
  3. Step 3: Cross multiply
    263.36x = 363.52 × 249.60
  4. Step 4: Simplify right side
    263.36x = 90,734.59
  5. Step 5: Solve for x
    x = 90,734.59/263.36
  6. Step 6: Final answer
    x = 344.53

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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.