Home / 219,983.20-329,974.80-206,159.20

Finding the Fourth Proportional to 219,983.20, 329,974.80 and 206,159.20

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Solution

The fourth proportional to 219,983.20, 329,974.80 and 206,159.20 is: 309,238.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,983.20 : 329,974.80 = 206,159.20 : x
  2. Step 2: Convert to fraction form
    219,983.20/329,974.80 = 206,159.20/x
  3. Step 3: Cross multiply
    219,983.20x = 329,974.80 × 206,159.20
  4. Step 4: Simplify right side
    219,983.20x = 68,027,340,788.16
  5. Step 5: Solve for x
    x = 68,027,340,788.16/219,983.20
  6. Step 6: Final answer
    x = 309,238.80

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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.