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Finding the Fourth Proportional to 376,543.50, 519,633.68 and 206,781.27

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Solution

The fourth proportional to 376,543.50, 519,633.68 and 206,781.27 is: 285,360.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,543.50 : 519,633.68 = 206,781.27 : x
  2. Step 2: Convert to fraction form
    376,543.50/519,633.68 = 206,781.27/x
  3. Step 3: Cross multiply
    376,543.50x = 519,633.68 × 206,781.27
  4. Step 4: Simplify right side
    376,543.50x = 107,450,511,251.27
  5. Step 5: Solve for x
    x = 107,450,511,251.27/376,543.50
  6. Step 6: Final answer
    x = 285,360.15

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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.