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Finding the Fourth Proportional to 676.76, 1,015.41 and 244.22

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Solution

The fourth proportional to 676.76, 1,015.41 and 244.22 is: 366.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.76 : 1,015.41 = 244.22 : x
  2. Step 2: Convert to fraction form
    676.76/1,015.41 = 244.22/x
  3. Step 3: Cross multiply
    676.76x = 1,015.41 × 244.22
  4. Step 4: Simplify right side
    676.76x = 247,983.43
  5. Step 5: Solve for x
    x = 247,983.43/676.76
  6. Step 6: Final answer
    x = 366.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.