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Finding the Fourth Proportional to 196.65, 295.07 and 88.43

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Solution

The fourth proportional to 196.65, 295.07 and 88.43 is: 132.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.65 : 295.07 = 88.43 : x
  2. Step 2: Convert to fraction form
    196.65/295.07 = 88.43/x
  3. Step 3: Cross multiply
    196.65x = 295.07 × 88.43
  4. Step 4: Simplify right side
    196.65x = 26,091.12
  5. Step 5: Solve for x
    x = 26,091.12/196.65
  6. Step 6: Final answer
    x = 132.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.