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Finding the Fourth Proportional to 650.16, 974.88 and 217.26

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Solution

The fourth proportional to 650.16, 974.88 and 217.26 is: 325.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.16 : 974.88 = 217.26 : x
  2. Step 2: Convert to fraction form
    650.16/974.88 = 217.26/x
  3. Step 3: Cross multiply
    650.16x = 974.88 × 217.26
  4. Step 4: Simplify right side
    650.16x = 211,802.43
  5. Step 5: Solve for x
    x = 211,802.43/650.16
  6. Step 6: Final answer
    x = 325.77

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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.