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Finding the Fourth Proportional to 256.38, 354.15 and 244.23

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Solution

The fourth proportional to 256.38, 354.15 and 244.23 is: 337.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    256.38 : 354.15 = 244.23 : x
  2. Step 2: Convert to fraction form
    256.38/354.15 = 244.23/x
  3. Step 3: Cross multiply
    256.38x = 354.15 × 244.23
  4. Step 4: Simplify right side
    256.38x = 86,494.05
  5. Step 5: Solve for x
    x = 86,494.05/256.38
  6. Step 6: Final answer
    x = 337.37

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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.