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Finding the Fourth Proportional to 650.88, 976.50 and 212.04

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Solution

The fourth proportional to 650.88, 976.50 and 212.04 is: 318.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.88 : 976.50 = 212.04 : x
  2. Step 2: Convert to fraction form
    650.88/976.50 = 212.04/x
  3. Step 3: Cross multiply
    650.88x = 976.50 × 212.04
  4. Step 4: Simplify right side
    650.88x = 207,057.06
  5. Step 5: Solve for x
    x = 207,057.06/650.88
  6. Step 6: Final answer
    x = 318.12

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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.