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Finding the Fourth Proportional to 198,367, 273,771.42 and 122,926.84

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Solution

The fourth proportional to 198,367, 273,771.42 and 122,926.84 is: 169,654.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,367 : 273,771.42 = 122,926.84 : x
  2. Step 2: Convert to fraction form
    198,367/273,771.42 = 122,926.84/x
  3. Step 3: Cross multiply
    198,367x = 273,771.42 × 122,926.84
  4. Step 4: Simplify right side
    198,367x = 33,653,855,542.91
  5. Step 5: Solve for x
    x = 33,653,855,542.91/198,367
  6. Step 6: Final answer
    x = 169,654.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.