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Finding the Fourth Proportional to 325.29, 484.01 and 324.21

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Solution

The fourth proportional to 325.29, 484.01 and 324.21 is: 482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.29 : 484.01 = 324.21 : x
  2. Step 2: Convert to fraction form
    325.29/484.01 = 324.21/x
  3. Step 3: Cross multiply
    325.29x = 484.01 × 324.21
  4. Step 4: Simplify right side
    325.29x = 156,920.88
  5. Step 5: Solve for x
    x = 156,920.88/325.29
  6. Step 6: Final answer
    x = 482.40

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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.