Home / 378,134.91-521,819.46-206,054.37

Finding the Fourth Proportional to 378,134.91, 521,819.46 and 206,054.37

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Solution

The fourth proportional to 378,134.91, 521,819.46 and 206,054.37 is: 284,351.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,134.91 : 521,819.46 = 206,054.37 : x
  2. Step 2: Convert to fraction form
    378,134.91/521,819.46 = 206,054.37/x
  3. Step 3: Cross multiply
    378,134.91x = 521,819.46 × 206,054.37
  4. Step 4: Simplify right side
    378,134.91x = 107,523,180,084.04
  5. Step 5: Solve for x
    x = 107,523,180,084.04/378,134.91
  6. Step 6: Final answer
    x = 284,351.37

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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.