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Finding the Fourth Proportional to 273.47, 379.74 and 270.42

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Solution

The fourth proportional to 273.47, 379.74 and 270.42 is: 375.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.47 : 379.74 = 270.42 : x
  2. Step 2: Convert to fraction form
    273.47/379.74 = 270.42/x
  3. Step 3: Cross multiply
    273.47x = 379.74 × 270.42
  4. Step 4: Simplify right side
    273.47x = 102,689.29
  5. Step 5: Solve for x
    x = 102,689.29/273.47
  6. Step 6: Final answer
    x = 375.51

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.