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Finding the Fourth Proportional to 276.04, 413.24 and 203.95

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Solution

The fourth proportional to 276.04, 413.24 and 203.95 is: 305.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.04 : 413.24 = 203.95 : x
  2. Step 2: Convert to fraction form
    276.04/413.24 = 203.95/x
  3. Step 3: Cross multiply
    276.04x = 413.24 × 203.95
  4. Step 4: Simplify right side
    276.04x = 84,279.79
  5. Step 5: Solve for x
    x = 84,279.79/276.04
  6. Step 6: Final answer
    x = 305.32

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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.