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Finding the Fourth Proportional to 249.36, 345.77 and 244.90

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Solution

The fourth proportional to 249.36, 345.77 and 244.90 is: 339.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    249.36 : 345.77 = 244.90 : x
  2. Step 2: Convert to fraction form
    249.36/345.77 = 244.90/x
  3. Step 3: Cross multiply
    249.36x = 345.77 × 244.90
  4. Step 4: Simplify right side
    249.36x = 84,679.07
  5. Step 5: Solve for x
    x = 84,679.07/249.36
  6. Step 6: Final answer
    x = 339.59

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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.