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Finding the Fourth Proportional to 324.29, 482.52 and 323.21

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Solution

The fourth proportional to 324.29, 482.52 and 323.21 is: 480.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.29 : 482.52 = 323.21 : x
  2. Step 2: Convert to fraction form
    324.29/482.52 = 323.21/x
  3. Step 3: Cross multiply
    324.29x = 482.52 × 323.21
  4. Step 4: Simplify right side
    324.29x = 155,952.88
  5. Step 5: Solve for x
    x = 155,952.88/324.29
  6. Step 6: Final answer
    x = 480.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.