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Finding the Fourth Proportional to 248.90, 343.91 and 244.85

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Solution

The fourth proportional to 248.90, 343.91 and 244.85 is: 338.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    248.90 : 343.91 = 244.85 : x
  2. Step 2: Convert to fraction form
    248.90/343.91 = 244.85/x
  3. Step 3: Cross multiply
    248.90x = 343.91 × 244.85
  4. Step 4: Simplify right side
    248.90x = 84,205.26
  5. Step 5: Solve for x
    x = 84,205.26/248.90
  6. Step 6: Final answer
    x = 338.32

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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.