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Finding the Fourth Proportional to 197,595, 272,687.94 and 108,171

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Solution

The fourth proportional to 197,595, 272,687.94 and 108,171 is: 149,279.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,595 : 272,687.94 = 108,171 : x
  2. Step 2: Convert to fraction form
    197,595/272,687.94 = 108,171/x
  3. Step 3: Cross multiply
    197,595x = 272,687.94 × 108,171
  4. Step 4: Simplify right side
    197,595x = 29,496,927,157.74
  5. Step 5: Solve for x
    x = 29,496,927,157.74/197,595
  6. Step 6: Final answer
    x = 149,279.72

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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.