Home / 279,847.28-386,198.27-158,986.37

Finding the Fourth Proportional to 279,847.28, 386,198.27 and 158,986.37

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Solution

The fourth proportional to 279,847.28, 386,198.27 and 158,986.37 is: 219,406.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,847.28 : 386,198.27 = 158,986.37 : x
  2. Step 2: Convert to fraction form
    279,847.28/386,198.27 = 158,986.37/x
  3. Step 3: Cross multiply
    279,847.28x = 386,198.27 × 158,986.37
  4. Step 4: Simplify right side
    279,847.28x = 61,400,258,321.66
  5. Step 5: Solve for x
    x = 61,400,258,321.66/279,847.28
  6. Step 6: Final answer
    x = 219,406.31

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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.