Home / 221,161.38-331,742.06-54,949.38

Finding the Fourth Proportional to 221,161.38, 331,742.06 and 54,949.38

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Solution

The fourth proportional to 221,161.38, 331,742.06 and 54,949.38 is: 82,424.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,161.38 : 331,742.06 = 54,949.38 : x
  2. Step 2: Convert to fraction form
    221,161.38/331,742.06 = 54,949.38/x
  3. Step 3: Cross multiply
    221,161.38x = 331,742.06 × 54,949.38
  4. Step 4: Simplify right side
    221,161.38x = 18,229,020,516.92
  5. Step 5: Solve for x
    x = 18,229,020,516.92/221,161.38
  6. Step 6: Final answer
    x = 82,424.07

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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.