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Finding the Fourth Proportional to 196.02, 292.05 and 186.84

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Solution

The fourth proportional to 196.02, 292.05 and 186.84 is: 278.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    196.02 : 292.05 = 186.84 : x
  2. Step 2: Convert to fraction form
    196.02/292.05 = 186.84/x
  3. Step 3: Cross multiply
    196.02x = 292.05 × 186.84
  4. Step 4: Simplify right side
    196.02x = 54,566.62
  5. Step 5: Solve for x
    x = 54,566.62/196.02
  6. Step 6: Final answer
    x = 278.37

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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.