Home / 331,456.78-457,394.61-188,198.02

Finding the Fourth Proportional to 331,456.78, 457,394.61 and 188,198.02

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Solution

The fourth proportional to 331,456.78, 457,394.61 and 188,198.02 is: 259,704.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,456.78 : 457,394.61 = 188,198.02 : x
  2. Step 2: Convert to fraction form
    331,456.78/457,394.61 = 188,198.02/x
  3. Step 3: Cross multiply
    331,456.78x = 457,394.61 × 188,198.02
  4. Step 4: Simplify right side
    331,456.78x = 86,080,759,960.67
  5. Step 5: Solve for x
    x = 86,080,759,960.67/331,456.78
  6. Step 6: Final answer
    x = 259,704.33

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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.