Home / 353,949.29-488,434.25-206,787.78

Finding the Fourth Proportional to 353,949.29, 488,434.25 and 206,787.78

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Solution

The fourth proportional to 353,949.29, 488,434.25 and 206,787.78 is: 285,357.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,949.29 : 488,434.25 = 206,787.78 : x
  2. Step 2: Convert to fraction form
    353,949.29/488,434.25 = 206,787.78/x
  3. Step 3: Cross multiply
    353,949.29x = 488,434.25 × 206,787.78
  4. Step 4: Simplify right side
    353,949.29x = 101,002,234,233.47
  5. Step 5: Solve for x
    x = 101,002,234,233.47/353,949.29
  6. Step 6: Final answer
    x = 285,357.93

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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.