Home / 206,569.20-309,853.80-197,821.20

Finding the Fourth Proportional to 206,569.20, 309,853.80 and 197,821.20

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Solution

The fourth proportional to 206,569.20, 309,853.80 and 197,821.20 is: 296,731.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,569.20 : 309,853.80 = 197,821.20 : x
  2. Step 2: Convert to fraction form
    206,569.20/309,853.80 = 197,821.20/x
  3. Step 3: Cross multiply
    206,569.20x = 309,853.80 × 197,821.20
  4. Step 4: Simplify right side
    206,569.20x = 61,295,650,540.56
  5. Step 5: Solve for x
    x = 61,295,650,540.56/206,569.20
  6. Step 6: Final answer
    x = 296,731.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.