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Finding the Fourth Proportional to 324.85, 448.30 and 192.07

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Solution

The fourth proportional to 324.85, 448.30 and 192.07 is: 265.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.85 : 448.30 = 192.07 : x
  2. Step 2: Convert to fraction form
    324.85/448.30 = 192.07/x
  3. Step 3: Cross multiply
    324.85x = 448.30 × 192.07
  4. Step 4: Simplify right side
    324.85x = 86,104.98
  5. Step 5: Solve for x
    x = 86,104.98/324.85
  6. Step 6: Final answer
    x = 265.06

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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.