Home / 280,033.47-386,469.09-159,212.61

Finding the Fourth Proportional to 280,033.47, 386,469.09 and 159,212.61

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Solution

The fourth proportional to 280,033.47, 386,469.09 and 159,212.61 is: 219,726.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,033.47 : 386,469.09 = 159,212.61 : x
  2. Step 2: Convert to fraction form
    280,033.47/386,469.09 = 159,212.61/x
  3. Step 3: Cross multiply
    280,033.47x = 386,469.09 × 159,212.61
  4. Step 4: Simplify right side
    280,033.47x = 61,530,752,503.22
  5. Step 5: Solve for x
    x = 61,530,752,503.22/280,033.47
  6. Step 6: Final answer
    x = 219,726.42

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1.5x scale

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.