Home / 279,976.43-386,367.57-159,114.60

Finding the Fourth Proportional to 279,976.43, 386,367.57 and 159,114.60

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Solution

The fourth proportional to 279,976.43, 386,367.57 and 159,114.60 is: 219,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,976.43 : 386,367.57 = 159,114.60 : x
  2. Step 2: Convert to fraction form
    279,976.43/386,367.57 = 159,114.60/x
  3. Step 3: Cross multiply
    279,976.43x = 386,367.57 × 159,114.60
  4. Step 4: Simplify right side
    279,976.43x = 61,476,721,353.52
  5. Step 5: Solve for x
    x = 61,476,721,353.52/279,976.43
  6. Step 6: Final answer
    x = 219,578.20

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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.