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Finding the Fourth Proportional to 256.11, 353.88 and 250.44

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Solution

The fourth proportional to 256.11, 353.88 and 250.44 is: 346.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    256.11 : 353.88 = 250.44 : x
  2. Step 2: Convert to fraction form
    256.11/353.88 = 250.44/x
  3. Step 3: Cross multiply
    256.11x = 353.88 × 250.44
  4. Step 4: Simplify right side
    256.11x = 88,625.71
  5. Step 5: Solve for x
    x = 88,625.71/256.11
  6. Step 6: Final answer
    x = 346.05

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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.