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Finding the Fourth Proportional to 269.10, 403.14 and 223.74

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Solution

The fourth proportional to 269.10, 403.14 and 223.74 is: 335.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.10 : 403.14 = 223.74 : x
  2. Step 2: Convert to fraction form
    269.10/403.14 = 223.74/x
  3. Step 3: Cross multiply
    269.10x = 403.14 × 223.74
  4. Step 4: Simplify right side
    269.10x = 90,198.54
  5. Step 5: Solve for x
    x = 90,198.54/269.10
  6. Step 6: Final answer
    x = 335.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.