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Finding the Fourth Proportional to 266.30, 367.46 and 196.32

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Solution

The fourth proportional to 266.30, 367.46 and 196.32 is: 270.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266.30 : 367.46 = 196.32 : x
  2. Step 2: Convert to fraction form
    266.30/367.46 = 196.32/x
  3. Step 3: Cross multiply
    266.30x = 367.46 × 196.32
  4. Step 4: Simplify right side
    266.30x = 72,139.75
  5. Step 5: Solve for x
    x = 72,139.75/266.30
  6. Step 6: Final answer
    x = 270.90

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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.