Home / 286,198.18-394,971.88-165,344.56

Finding the Fourth Proportional to 286,198.18, 394,971.88 and 165,344.56

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Solution

The fourth proportional to 286,198.18, 394,971.88 and 165,344.56 is: 228,186.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,198.18 : 394,971.88 = 165,344.56 : x
  2. Step 2: Convert to fraction form
    286,198.18/394,971.88 = 165,344.56/x
  3. Step 3: Cross multiply
    286,198.18x = 394,971.88 × 165,344.56
  4. Step 4: Simplify right side
    286,198.18x = 65,306,451,710.97
  5. Step 5: Solve for x
    x = 65,306,451,710.97/286,198.18
  6. Step 6: Final answer
    x = 228,186.12

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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.