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Finding the Fourth Proportional to 266.32, 367.01 and 239.81

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Solution

The fourth proportional to 266.32, 367.01 and 239.81 is: 330.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.32 : 367.01 = 239.81 : x
  2. Step 2: Convert to fraction form
    266.32/367.01 = 239.81/x
  3. Step 3: Cross multiply
    266.32x = 367.01 × 239.81
  4. Step 4: Simplify right side
    266.32x = 88,012.67
  5. Step 5: Solve for x
    x = 88,012.67/266.32
  6. Step 6: Final answer
    x = 330.48

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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.