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Finding the Fourth Proportional to 650.72, 975.94 and 212.01

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Solution

The fourth proportional to 650.72, 975.94 and 212.01 is: 317.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.72 : 975.94 = 212.01 : x
  2. Step 2: Convert to fraction form
    650.72/975.94 = 212.01/x
  3. Step 3: Cross multiply
    650.72x = 975.94 × 212.01
  4. Step 4: Simplify right side
    650.72x = 206,907.98
  5. Step 5: Solve for x
    x = 206,907.98/650.72
  6. Step 6: Final answer
    x = 317.97

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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.