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Finding the Fourth Proportional to 650.67, 975.97 and 163.72

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Solution

The fourth proportional to 650.67, 975.97 and 163.72 is: 245.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.67 : 975.97 = 163.72 : x
  2. Step 2: Convert to fraction form
    650.67/975.97 = 163.72/x
  3. Step 3: Cross multiply
    650.67x = 975.97 × 163.72
  4. Step 4: Simplify right side
    650.67x = 159,785.81
  5. Step 5: Solve for x
    x = 159,785.81/650.67
  6. Step 6: Final answer
    x = 245.57

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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.