Home / 376,731.90-519,890.20-206,976.96

Finding the Fourth Proportional to 376,731.90, 519,890.20 and 206,976.96

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Solution

The fourth proportional to 376,731.90, 519,890.20 and 206,976.96 is: 285,628.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,731.90 : 519,890.20 = 206,976.96 : x
  2. Step 2: Convert to fraction form
    376,731.90/519,890.20 = 206,976.96/x
  3. Step 3: Cross multiply
    376,731.90x = 519,890.20 × 206,976.96
  4. Step 4: Simplify right side
    376,731.90x = 107,605,293,129.79
  5. Step 5: Solve for x
    x = 107,605,293,129.79/376,731.90
  6. Step 6: Final answer
    x = 285,628.30

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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.