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Finding the Fourth Proportional to 270.73, 403.38 and 269.65

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Solution

The fourth proportional to 270.73, 403.38 and 269.65 is: 401.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.73 : 403.38 = 269.65 : x
  2. Step 2: Convert to fraction form
    270.73/403.38 = 269.65/x
  3. Step 3: Cross multiply
    270.73x = 403.38 × 269.65
  4. Step 4: Simplify right side
    270.73x = 108,771.42
  5. Step 5: Solve for x
    x = 108,771.42/270.73
  6. Step 6: Final answer
    x = 401.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.