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Finding the Fourth Proportional to 273.80, 375.60 and 266.91

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Solution

The fourth proportional to 273.80, 375.60 and 266.91 is: 366.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.80 : 375.60 = 266.91 : x
  2. Step 2: Convert to fraction form
    273.80/375.60 = 266.91/x
  3. Step 3: Cross multiply
    273.80x = 375.60 × 266.91
  4. Step 4: Simplify right side
    273.80x = 100,251.40
  5. Step 5: Solve for x
    x = 100,251.40/273.80
  6. Step 6: Final answer
    x = 366.15

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.