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Finding the Fourth Proportional to 266.37, 367.21 and 207.25

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Solution

The fourth proportional to 266.37, 367.21 and 207.25 is: 285.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.37 : 367.21 = 207.25 : x
  2. Step 2: Convert to fraction form
    266.37/367.21 = 207.25/x
  3. Step 3: Cross multiply
    266.37x = 367.21 × 207.25
  4. Step 4: Simplify right side
    266.37x = 76,105.68
  5. Step 5: Solve for x
    x = 76,105.68/266.37
  6. Step 6: Final answer
    x = 285.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.