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Finding the Fourth Proportional to 269.94, 374.26 and 255.36

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Solution

The fourth proportional to 269.94, 374.26 and 255.36 is: 354.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.94 : 374.26 = 255.36 : x
  2. Step 2: Convert to fraction form
    269.94/374.26 = 255.36/x
  3. Step 3: Cross multiply
    269.94x = 374.26 × 255.36
  4. Step 4: Simplify right side
    269.94x = 95,571.03
  5. Step 5: Solve for x
    x = 95,571.03/269.94
  6. Step 6: Final answer
    x = 354.05

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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.