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Finding the Fourth Proportional to 299.67, 413.46 and 183.21

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Solution

The fourth proportional to 299.67, 413.46 and 183.21 is: 252.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.67 : 413.46 = 183.21 : x
  2. Step 2: Convert to fraction form
    299.67/413.46 = 183.21/x
  3. Step 3: Cross multiply
    299.67x = 413.46 × 183.21
  4. Step 4: Simplify right side
    299.67x = 75,750.01
  5. Step 5: Solve for x
    x = 75,750.01/299.67
  6. Step 6: Final answer
    x = 252.78

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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.