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Finding the Fourth Proportional to 279.34, 384 and 249.52

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Solution

The fourth proportional to 279.34, 384 and 249.52 is: 343.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    279.34 : 384 = 249.52 : x
  2. Step 2: Convert to fraction form
    279.34/384 = 249.52/x
  3. Step 3: Cross multiply
    279.34x = 384 × 249.52
  4. Step 4: Simplify right side
    279.34x = 95,815.68
  5. Step 5: Solve for x
    x = 95,815.68/279.34
  6. Step 6: Final answer
    x = 343.01

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.