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Finding the Fourth Proportional to 276.26, 413.67 and 194.66

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Solution

The fourth proportional to 276.26, 413.67 and 194.66 is: 291.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.26 : 413.67 = 194.66 : x
  2. Step 2: Convert to fraction form
    276.26/413.67 = 194.66/x
  3. Step 3: Cross multiply
    276.26x = 413.67 × 194.66
  4. Step 4: Simplify right side
    276.26x = 80,525.00
  5. Step 5: Solve for x
    x = 80,525.00/276.26
  6. Step 6: Final answer
    x = 291.48

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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.