Home / 378,077.22-521,752.56-206,003.31

Finding the Fourth Proportional to 378,077.22, 521,752.56 and 206,003.31

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Solution

The fourth proportional to 378,077.22, 521,752.56 and 206,003.31 is: 284,287.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,077.22 : 521,752.56 = 206,003.31 : x
  2. Step 2: Convert to fraction form
    378,077.22/521,752.56 = 206,003.31/x
  3. Step 3: Cross multiply
    378,077.22x = 521,752.56 × 206,003.31
  4. Step 4: Simplify right side
    378,077.22x = 107,482,754,360.97
  5. Step 5: Solve for x
    x = 107,482,754,360.97/378,077.22
  6. Step 6: Final answer
    x = 284,287.84

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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.