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Finding the Fourth Proportional to 249.60, 343.91 and 236.37

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Solution

The fourth proportional to 249.60, 343.91 and 236.37 is: 325.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.60 : 343.91 = 236.37 : x
  2. Step 2: Convert to fraction form
    249.60/343.91 = 236.37/x
  3. Step 3: Cross multiply
    249.60x = 343.91 × 236.37
  4. Step 4: Simplify right side
    249.60x = 81,290.01
  5. Step 5: Solve for x
    x = 81,290.01/249.60
  6. Step 6: Final answer
    x = 325.68

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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.