Home / 282,608.35-389,976.90-161,721.92

Finding the Fourth Proportional to 282,608.35, 389,976.90 and 161,721.92

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Solution

The fourth proportional to 282,608.35, 389,976.90 and 161,721.92 is: 223,163.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,608.35 : 389,976.90 = 161,721.92 : x
  2. Step 2: Convert to fraction form
    282,608.35/389,976.90 = 161,721.92/x
  3. Step 3: Cross multiply
    282,608.35x = 389,976.90 × 161,721.92
  4. Step 4: Simplify right side
    282,608.35x = 63,067,813,392.13
  5. Step 5: Solve for x
    x = 63,067,813,392.13/282,608.35
  6. Step 6: Final answer
    x = 223,163.31

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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.