Home / 221,040.57-331,324.78-126,066.28

Finding the Fourth Proportional to 221,040.57, 331,324.78 and 126,066.28

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Solution

The fourth proportional to 221,040.57, 331,324.78 and 126,066.28 is: 188,964.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,040.57 : 331,324.78 = 126,066.28 : x
  2. Step 2: Convert to fraction form
    221,040.57/331,324.78 = 126,066.28/x
  3. Step 3: Cross multiply
    221,040.57x = 331,324.78 × 126,066.28
  4. Step 4: Simplify right side
    221,040.57x = 41,768,882,486.42
  5. Step 5: Solve for x
    x = 41,768,882,486.42/221,040.57
  6. Step 6: Final answer
    x = 188,964.78

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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.