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Finding the Fourth Proportional to 273.58, 380.15 and 270.15

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Solution

The fourth proportional to 273.58, 380.15 and 270.15 is: 375.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.58 : 380.15 = 270.15 : x
  2. Step 2: Convert to fraction form
    273.58/380.15 = 270.15/x
  3. Step 3: Cross multiply
    273.58x = 380.15 × 270.15
  4. Step 4: Simplify right side
    273.58x = 102,697.52
  5. Step 5: Solve for x
    x = 102,697.52/273.58
  6. Step 6: Final answer
    x = 375.38

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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.