Home / 378,824.19-522,780.38-206,743.51

Finding the Fourth Proportional to 378,824.19, 522,780.38 and 206,743.51

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Solution

The fourth proportional to 378,824.19, 522,780.38 and 206,743.51 is: 285,307.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,824.19 : 522,780.38 = 206,743.51 : x
  2. Step 2: Convert to fraction form
    378,824.19/522,780.38 = 206,743.51/x
  3. Step 3: Cross multiply
    378,824.19x = 522,780.38 × 206,743.51
  4. Step 4: Simplify right side
    378,824.19x = 108,081,450,720.33
  5. Step 5: Solve for x
    x = 108,081,450,720.33/378,824.19
  6. Step 6: Final answer
    x = 285,307.68

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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.