Home / 227,315.92-313,713.06-131,821.78

Finding the Fourth Proportional to 227,315.92, 313,713.06 and 131,821.78

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Solution

The fourth proportional to 227,315.92, 313,713.06 and 131,821.78 is: 181,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,315.92 : 313,713.06 = 131,821.78 : x
  2. Step 2: Convert to fraction form
    227,315.92/313,713.06 = 131,821.78/x
  3. Step 3: Cross multiply
    227,315.92x = 313,713.06 × 131,821.78
  4. Step 4: Simplify right side
    227,315.92x = 41,354,213,978.45
  5. Step 5: Solve for x
    x = 41,354,213,978.45/227,315.92
  6. Step 6: Final answer
    x = 181,923.97

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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.