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Finding the Fourth Proportional to 276.35, 413.75 and 184.87

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Solution

The fourth proportional to 276.35, 413.75 and 184.87 is: 276.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.35 : 413.75 = 184.87 : x
  2. Step 2: Convert to fraction form
    276.35/413.75 = 184.87/x
  3. Step 3: Cross multiply
    276.35x = 413.75 × 184.87
  4. Step 4: Simplify right side
    276.35x = 76,489.96
  5. Step 5: Solve for x
    x = 76,489.96/276.35
  6. Step 6: Final answer
    x = 276.79

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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.