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Finding the Fourth Proportional to 483.56, 667.28 and 273.76

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Solution

The fourth proportional to 483.56, 667.28 and 273.76 is: 377.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.56 : 667.28 = 273.76 : x
  2. Step 2: Convert to fraction form
    483.56/667.28 = 273.76/x
  3. Step 3: Cross multiply
    483.56x = 667.28 × 273.76
  4. Step 4: Simplify right side
    483.56x = 182,671.54
  5. Step 5: Solve for x
    x = 182,671.54/483.56
  6. Step 6: Final answer
    x = 377.76

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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.