Home / 285,918.04-394,584.78-165,081.43

Finding the Fourth Proportional to 285,918.04, 394,584.78 and 165,081.43

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Solution

The fourth proportional to 285,918.04, 394,584.78 and 165,081.43 is: 227,822.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,918.04 : 394,584.78 = 165,081.43 : x
  2. Step 2: Convert to fraction form
    285,918.04/394,584.78 = 165,081.43/x
  3. Step 3: Cross multiply
    285,918.04x = 394,584.78 × 165,081.43
  4. Step 4: Simplify right side
    285,918.04x = 65,138,619,738.64
  5. Step 5: Solve for x
    x = 65,138,619,738.64/285,918.04
  6. Step 6: Final answer
    x = 227,822.70

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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.