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Finding the Fourth Proportional to 299.48, 413.62 and 224.66

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Solution

The fourth proportional to 299.48, 413.62 and 224.66 is: 310.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.48 : 413.62 = 224.66 : x
  2. Step 2: Convert to fraction form
    299.48/413.62 = 224.66/x
  3. Step 3: Cross multiply
    299.48x = 413.62 × 224.66
  4. Step 4: Simplify right side
    299.48x = 92,923.87
  5. Step 5: Solve for x
    x = 92,923.87/299.48
  6. Step 6: Final answer
    x = 310.28

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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.