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Finding the Fourth Proportional to 196.51, 270.96 and 186.25

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Solution

The fourth proportional to 196.51, 270.96 and 186.25 is: 256.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.51 : 270.96 = 186.25 : x
  2. Step 2: Convert to fraction form
    196.51/270.96 = 186.25/x
  3. Step 3: Cross multiply
    196.51x = 270.96 × 186.25
  4. Step 4: Simplify right side
    196.51x = 50,466.30
  5. Step 5: Solve for x
    x = 50,466.30/196.51
  6. Step 6: Final answer
    x = 256.81

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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.