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Finding the Fourth Proportional to 325.73, 488.82 and 216.02

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Solution

The fourth proportional to 325.73, 488.82 and 216.02 is: 324.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.73 : 488.82 = 216.02 : x
  2. Step 2: Convert to fraction form
    325.73/488.82 = 216.02/x
  3. Step 3: Cross multiply
    325.73x = 488.82 × 216.02
  4. Step 4: Simplify right side
    325.73x = 105,594.90
  5. Step 5: Solve for x
    x = 105,594.90/325.73
  6. Step 6: Final answer
    x = 324.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.