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Finding the Fourth Proportional to 299.10, 413.10 and 252.72

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Solution

The fourth proportional to 299.10, 413.10 and 252.72 is: 349.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    299.10 : 413.10 = 252.72 : x
  2. Step 2: Convert to fraction form
    299.10/413.10 = 252.72/x
  3. Step 3: Cross multiply
    299.10x = 413.10 × 252.72
  4. Step 4: Simplify right side
    299.10x = 104,398.63
  5. Step 5: Solve for x
    x = 104,398.63/299.10
  6. Step 6: Final answer
    x = 349.04

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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.