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Finding the Fourth Proportional to 188,295.75, 259,871.18 and 108,807.75

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Solution

The fourth proportional to 188,295.75, 259,871.18 and 108,807.75 is: 150,168.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,295.75 : 259,871.18 = 108,807.75 : x
  2. Step 2: Convert to fraction form
    188,295.75/259,871.18 = 108,807.75/x
  3. Step 3: Cross multiply
    188,295.75x = 259,871.18 × 108,807.75
  4. Step 4: Simplify right side
    188,295.75x = 28,275,998,385.65
  5. Step 5: Solve for x
    x = 28,275,998,385.65/188,295.75
  6. Step 6: Final answer
    x = 150,168.01

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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.