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Finding the Fourth Proportional to 273.94, 413.02 and 220.48

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Solution

The fourth proportional to 273.94, 413.02 and 220.48 is: 332.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.94 : 413.02 = 220.48 : x
  2. Step 2: Convert to fraction form
    273.94/413.02 = 220.48/x
  3. Step 3: Cross multiply
    273.94x = 413.02 × 220.48
  4. Step 4: Simplify right side
    273.94x = 91,061.89
  5. Step 5: Solve for x
    x = 91,061.89/273.94
  6. Step 6: Final answer
    x = 332.42

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.