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Finding the Fourth Proportional to 196.48, 294.92 and 192.12

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Solution

The fourth proportional to 196.48, 294.92 and 192.12 is: 288.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.48 : 294.92 = 192.12 : x
  2. Step 2: Convert to fraction form
    196.48/294.92 = 192.12/x
  3. Step 3: Cross multiply
    196.48x = 294.92 × 192.12
  4. Step 4: Simplify right side
    196.48x = 56,660.03
  5. Step 5: Solve for x
    x = 56,660.03/196.48
  6. Step 6: Final answer
    x = 288.38

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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.