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Finding the Fourth Proportional to 249.67, 344.69 and 194.32

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Solution

The fourth proportional to 249.67, 344.69 and 194.32 is: 268.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.67 : 344.69 = 194.32 : x
  2. Step 2: Convert to fraction form
    249.67/344.69 = 194.32/x
  3. Step 3: Cross multiply
    249.67x = 344.69 × 194.32
  4. Step 4: Simplify right side
    249.67x = 66,980.16
  5. Step 5: Solve for x
    x = 66,980.16/249.67
  6. Step 6: Final answer
    x = 268.27

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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.