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Finding the Fourth Proportional to 274.85, 377.40 and 273.77

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Solution

The fourth proportional to 274.85, 377.40 and 273.77 is: 375.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    274.85 : 377.40 = 273.77 : x
  2. Step 2: Convert to fraction form
    274.85/377.40 = 273.77/x
  3. Step 3: Cross multiply
    274.85x = 377.40 × 273.77
  4. Step 4: Simplify right side
    274.85x = 103,320.80
  5. Step 5: Solve for x
    x = 103,320.80/274.85
  6. Step 6: Final answer
    x = 375.92

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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.