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Finding the Fourth Proportional to 225.08, 336.14 and 196.28

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Solution

The fourth proportional to 225.08, 336.14 and 196.28 is: 293.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    225.08 : 336.14 = 196.28 : x
  2. Step 2: Convert to fraction form
    225.08/336.14 = 196.28/x
  3. Step 3: Cross multiply
    225.08x = 336.14 × 196.28
  4. Step 4: Simplify right side
    225.08x = 65,977.56
  5. Step 5: Solve for x
    x = 65,977.56/225.08
  6. Step 6: Final answer
    x = 293.13

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.