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Finding the Fourth Proportional to 324,992.38, 448,537.92 and 189,106.78

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Solution

The fourth proportional to 324,992.38, 448,537.92 and 189,106.78 is: 260,995.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,992.38 : 448,537.92 = 189,106.78 : x
  2. Step 2: Convert to fraction form
    324,992.38/448,537.92 = 189,106.78/x
  3. Step 3: Cross multiply
    324,992.38x = 448,537.92 × 189,106.78
  4. Step 4: Simplify right side
    324,992.38x = 84,821,561,759.10
  5. Step 5: Solve for x
    x = 84,821,561,759.10/324,992.38
  6. Step 6: Final answer
    x = 260,995.54

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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.