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Finding the Fourth Proportional to 269.61, 403.59 and 196.29

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Solution

The fourth proportional to 269.61, 403.59 and 196.29 is: 293.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.61 : 403.59 = 196.29 : x
  2. Step 2: Convert to fraction form
    269.61/403.59 = 196.29/x
  3. Step 3: Cross multiply
    269.61x = 403.59 × 196.29
  4. Step 4: Simplify right side
    269.61x = 79,218.69
  5. Step 5: Solve for x
    x = 79,218.69/269.61
  6. Step 6: Final answer
    x = 293.83

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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.