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Finding the Fourth Proportional to 188,755.62, 260,488.86 and 108,198.38

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Solution

The fourth proportional to 188,755.62, 260,488.86 and 108,198.38 is: 149,317.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,755.62 : 260,488.86 = 108,198.38 : x
  2. Step 2: Convert to fraction form
    188,755.62/260,488.86 = 108,198.38/x
  3. Step 3: Cross multiply
    188,755.62x = 260,488.86 × 108,198.38
  4. Step 4: Simplify right side
    188,755.62x = 28,184,473,514.14
  5. Step 5: Solve for x
    x = 28,184,473,514.14/188,755.62
  6. Step 6: Final answer
    x = 149,317.27

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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.