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Finding the Fourth Proportional to 319.38, 441.23 and 273.23

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Solution

The fourth proportional to 319.38, 441.23 and 273.23 is: 377.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    319.38 : 441.23 = 273.23 : x
  2. Step 2: Convert to fraction form
    319.38/441.23 = 273.23/x
  3. Step 3: Cross multiply
    319.38x = 441.23 × 273.23
  4. Step 4: Simplify right side
    319.38x = 120,557.27
  5. Step 5: Solve for x
    x = 120,557.27/319.38
  6. Step 6: Final answer
    x = 377.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.