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Finding the Fourth Proportional to 650.75, 976.13 and 239.67

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Solution

The fourth proportional to 650.75, 976.13 and 239.67 is: 359.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.75 : 976.13 = 239.67 : x
  2. Step 2: Convert to fraction form
    650.75/976.13 = 239.67/x
  3. Step 3: Cross multiply
    650.75x = 976.13 × 239.67
  4. Step 4: Simplify right side
    650.75x = 233,948.78
  5. Step 5: Solve for x
    x = 233,948.78/650.75
  6. Step 6: Final answer
    x = 359.51

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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.