Home / 279,979.22-386,357.37-159,104.54

Finding the Fourth Proportional to 279,979.22, 386,357.37 and 159,104.54

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Solution

The fourth proportional to 279,979.22, 386,357.37 and 159,104.54 is: 219,556.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,979.22 : 386,357.37 = 159,104.54 : x
  2. Step 2: Convert to fraction form
    279,979.22/386,357.37 = 159,104.54/x
  3. Step 3: Cross multiply
    279,979.22x = 386,357.37 × 159,104.54
  4. Step 4: Simplify right side
    279,979.22x = 61,471,211,629.46
  5. Step 5: Solve for x
    x = 61,471,211,629.46/279,979.22
  6. Step 6: Final answer
    x = 219,556.34

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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.