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Finding the Fourth Proportional to 196.20, 292.52 and 193.77

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Solution

The fourth proportional to 196.20, 292.52 and 193.77 is: 288.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.20 : 292.52 = 193.77 : x
  2. Step 2: Convert to fraction form
    196.20/292.52 = 193.77/x
  3. Step 3: Cross multiply
    196.20x = 292.52 × 193.77
  4. Step 4: Simplify right side
    196.20x = 56,680.63
  5. Step 5: Solve for x
    x = 56,680.63/196.20
  6. Step 6: Final answer
    x = 288.89

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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.