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Finding the Fourth Proportional to 294.56, 406.83 and 196.14

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Solution

The fourth proportional to 294.56, 406.83 and 196.14 is: 270.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    294.56 : 406.83 = 196.14 : x
  2. Step 2: Convert to fraction form
    294.56/406.83 = 196.14/x
  3. Step 3: Cross multiply
    294.56x = 406.83 × 196.14
  4. Step 4: Simplify right side
    294.56x = 79,795.64
  5. Step 5: Solve for x
    x = 79,795.64/294.56
  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.