Home / 378,822.07-522,766.81-206,743.44

Finding the Fourth Proportional to 378,822.07, 522,766.81 and 206,743.44

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Solution

The fourth proportional to 378,822.07, 522,766.81 and 206,743.44 is: 285,301.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,822.07 : 522,766.81 = 206,743.44 : x
  2. Step 2: Convert to fraction form
    378,822.07/522,766.81 = 206,743.44/x
  3. Step 3: Cross multiply
    378,822.07x = 522,766.81 × 206,743.44
  4. Step 4: Simplify right side
    378,822.07x = 108,078,608,617.23
  5. Step 5: Solve for x
    x = 108,078,608,617.23/378,822.07
  6. Step 6: Final answer
    x = 285,301.77

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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.