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Finding the Fourth Proportional to 376,454.42, 519,508.04 and 206,699.48

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Solution

The fourth proportional to 376,454.42, 519,508.04 and 206,699.48 is: 285,245.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,454.42 : 519,508.04 = 206,699.48 : x
  2. Step 2: Convert to fraction form
    376,454.42/519,508.04 = 206,699.48/x
  3. Step 3: Cross multiply
    376,454.42x = 519,508.04 × 206,699.48
  4. Step 4: Simplify right side
    376,454.42x = 107,382,038,092.78
  5. Step 5: Solve for x
    x = 107,382,038,092.78/376,454.42
  6. Step 6: Final answer
    x = 285,245.79

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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.