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Finding the Fourth Proportional to 376,469.28, 519,528.78 and 206,714.52

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Solution

The fourth proportional to 376,469.28, 519,528.78 and 206,714.52 is: 285,266.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,469.28 : 519,528.78 = 206,714.52 : x
  2. Step 2: Convert to fraction form
    376,469.28/519,528.78 = 206,714.52/x
  3. Step 3: Cross multiply
    376,469.28x = 519,528.78 × 206,714.52
  4. Step 4: Simplify right side
    376,469.28x = 107,394,142,383.89
  5. Step 5: Solve for x
    x = 107,394,142,383.89/376,469.28
  6. Step 6: Final answer
    x = 285,266.68

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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.