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Finding the Fourth Proportional to 276.04, 413.61 and 194.50

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Solution

The fourth proportional to 276.04, 413.61 and 194.50 is: 291.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.04 : 413.61 = 194.50 : x
  2. Step 2: Convert to fraction form
    276.04/413.61 = 194.50/x
  3. Step 3: Cross multiply
    276.04x = 413.61 × 194.50
  4. Step 4: Simplify right side
    276.04x = 80,446.93
  5. Step 5: Solve for x
    x = 80,446.93/276.04
  6. Step 6: Final answer
    x = 291.43

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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.