Home / 218,974.92-328,243.68-188,867.22

Finding the Fourth Proportional to 218,974.92, 328,243.68 and 188,867.22

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Solution

The fourth proportional to 218,974.92, 328,243.68 and 188,867.22 is: 283,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,974.92 : 328,243.68 = 188,867.22 : x
  2. Step 2: Convert to fraction form
    218,974.92/328,243.68 = 188,867.22/x
  3. Step 3: Cross multiply
    218,974.92x = 328,243.68 × 188,867.22
  4. Step 4: Simplify right side
    218,974.92x = 61,994,471,324.17
  5. Step 5: Solve for x
    x = 61,994,471,324.17/218,974.92
  6. Step 6: Final answer
    x = 283,112.20

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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.