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Finding the Fourth Proportional to 322.11, 444.68 and 248.26

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Solution

The fourth proportional to 322.11, 444.68 and 248.26 is: 342.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.11 : 444.68 = 248.26 : x
  2. Step 2: Convert to fraction form
    322.11/444.68 = 248.26/x
  3. Step 3: Cross multiply
    322.11x = 444.68 × 248.26
  4. Step 4: Simplify right side
    322.11x = 110,396.26
  5. Step 5: Solve for x
    x = 110,396.26/322.11
  6. Step 6: Final answer
    x = 342.73

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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.