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Finding the Fourth Proportional to 324.70, 448.09 and 191.93

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Solution

The fourth proportional to 324.70, 448.09 and 191.93 is: 264.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.70 : 448.09 = 191.93 : x
  2. Step 2: Convert to fraction form
    324.70/448.09 = 191.93/x
  3. Step 3: Cross multiply
    324.70x = 448.09 × 191.93
  4. Step 4: Simplify right side
    324.70x = 86,001.91
  5. Step 5: Solve for x
    x = 86,001.91/324.70
  6. Step 6: Final answer
    x = 264.87

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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.