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Finding the Fourth Proportional to 676.90, 1,015.41 and 244.06

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Solution

The fourth proportional to 676.90, 1,015.41 and 244.06 is: 366.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    676.90 : 1,015.41 = 244.06 : x
  2. Step 2: Convert to fraction form
    676.90/1,015.41 = 244.06/x
  3. Step 3: Cross multiply
    676.90x = 1,015.41 × 244.06
  4. Step 4: Simplify right side
    676.90x = 247,820.96
  5. Step 5: Solve for x
    x = 247,820.96/676.90
  6. Step 6: Final answer
    x = 366.11

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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.