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Finding the Fourth Proportional to 188,909, 260,694.44 and 104,025.88

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Solution

The fourth proportional to 188,909, 260,694.44 and 104,025.88 is: 143,555.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,909 : 260,694.44 = 104,025.88 : x
  2. Step 2: Convert to fraction form
    188,909/260,694.44 = 104,025.88/x
  3. Step 3: Cross multiply
    188,909x = 260,694.44 × 104,025.88
  4. Step 4: Simplify right side
    188,909x = 27,118,968,532.11
  5. Step 5: Solve for x
    x = 27,118,968,532.11/188,909
  6. Step 6: Final answer
    x = 143,555.73

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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.