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Finding the Fourth Proportional to 324.97, 448.43 and 185.09

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Solution

The fourth proportional to 324.97, 448.43 and 185.09 is: 255.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.97 : 448.43 = 185.09 : x
  2. Step 2: Convert to fraction form
    324.97/448.43 = 185.09/x
  3. Step 3: Cross multiply
    324.97x = 448.43 × 185.09
  4. Step 4: Simplify right side
    324.97x = 82,996.74
  5. Step 5: Solve for x
    x = 82,996.74/324.97
  6. Step 6: Final answer
    x = 255.40

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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.