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Finding the Fourth Proportional to 253.08, 350.75 and 249.24

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Solution

The fourth proportional to 253.08, 350.75 and 249.24 is: 345.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    253.08 : 350.75 = 249.24 : x
  2. Step 2: Convert to fraction form
    253.08/350.75 = 249.24/x
  3. Step 3: Cross multiply
    253.08x = 350.75 × 249.24
  4. Step 4: Simplify right side
    253.08x = 87,419.68
  5. Step 5: Solve for x
    x = 87,419.68/253.08
  6. Step 6: Final answer
    x = 345.42

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.