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Finding the Fourth Proportional to 376,144.20, 519,079.62 and 206,379.54

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Solution

The fourth proportional to 376,144.20, 519,079.62 and 206,379.54 is: 284,804.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,144.20 : 519,079.62 = 206,379.54 : x
  2. Step 2: Convert to fraction form
    376,144.20/519,079.62 = 206,379.54/x
  3. Step 3: Cross multiply
    376,144.20x = 519,079.62 × 206,379.54
  4. Step 4: Simplify right side
    376,144.20x = 107,127,413,198.98
  5. Step 5: Solve for x
    x = 107,127,413,198.98/376,144.20
  6. Step 6: Final answer
    x = 284,804.11

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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.