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Finding the Fourth Proportional to 368,499.33, 551,604.87 and 199,600.20

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Solution

The fourth proportional to 368,499.33, 551,604.87 and 199,600.20 is: 298,780.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,499.33 : 551,604.87 = 199,600.20 : x
  2. Step 2: Convert to fraction form
    368,499.33/551,604.87 = 199,600.20/x
  3. Step 3: Cross multiply
    368,499.33x = 551,604.87 × 199,600.20
  4. Step 4: Simplify right side
    368,499.33x = 110,100,442,372.97
  5. Step 5: Solve for x
    x = 110,100,442,372.97/368,499.33
  6. Step 6: Final answer
    x = 298,780.58

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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.