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Finding the Fourth Proportional to 649.92, 974.97 and 217.02

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Solution

The fourth proportional to 649.92, 974.97 and 217.02 is: 325.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    649.92 : 974.97 = 217.02 : x
  2. Step 2: Convert to fraction form
    649.92/974.97 = 217.02/x
  3. Step 3: Cross multiply
    649.92x = 974.97 × 217.02
  4. Step 4: Simplify right side
    649.92x = 211,587.99
  5. Step 5: Solve for x
    x = 211,587.99/649.92
  6. Step 6: Final answer
    x = 325.56

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