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Finding the Fourth Proportional to 376,667.72, 519,787.50 and 206,891.72

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Solution

The fourth proportional to 376,667.72, 519,787.50 and 206,891.72 is: 285,502.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,667.72 : 519,787.50 = 206,891.72 : x
  2. Step 2: Convert to fraction form
    376,667.72/519,787.50 = 206,891.72/x
  3. Step 3: Cross multiply
    376,667.72x = 519,787.50 × 206,891.72
  4. Step 4: Simplify right side
    376,667.72x = 107,539,729,909.50
  5. Step 5: Solve for x
    x = 107,539,729,909.50/376,667.72
  6. Step 6: Final answer
    x = 285,502.91

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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.