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Finding the Fourth Proportional to 188,956, 260,736.60 and 108,379.36

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Solution

The fourth proportional to 188,956, 260,736.60 and 108,379.36 is: 149,550.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,956 : 260,736.60 = 108,379.36 : x
  2. Step 2: Convert to fraction form
    188,956/260,736.60 = 108,379.36/x
  3. Step 3: Cross multiply
    188,956x = 260,736.60 × 108,379.36
  4. Step 4: Simplify right side
    188,956x = 28,258,465,836.58
  5. Step 5: Solve for x
    x = 28,258,465,836.58/188,956
  6. Step 6: Final answer
    x = 149,550.51

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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.