Home / 279,721.46-386,002.19-158,846.78

Finding the Fourth Proportional to 279,721.46, 386,002.19 and 158,846.78

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Solution

The fourth proportional to 279,721.46, 386,002.19 and 158,846.78 is: 219,200.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,721.46 : 386,002.19 = 158,846.78 : x
  2. Step 2: Convert to fraction form
    279,721.46/386,002.19 = 158,846.78/x
  3. Step 3: Cross multiply
    279,721.46x = 386,002.19 × 158,846.78
  4. Step 4: Simplify right side
    279,721.46x = 61,315,206,316.57
  5. Step 5: Solve for x
    x = 61,315,206,316.57/279,721.46
  6. Step 6: Final answer
    x = 219,200.94

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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.