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Finding the Fourth Proportional to 196.02, 293.73 and 123.78

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Solution

The fourth proportional to 196.02, 293.73 and 123.78 is: 185.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.02 : 293.73 = 123.78 : x
  2. Step 2: Convert to fraction form
    196.02/293.73 = 123.78/x
  3. Step 3: Cross multiply
    196.02x = 293.73 × 123.78
  4. Step 4: Simplify right side
    196.02x = 36,357.90
  5. Step 5: Solve for x
    x = 36,357.90/196.02
  6. Step 6: Final answer
    x = 185.48

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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.