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Finding the Fourth Proportional to 200,690.82, 301,052.66 and 100,799.64

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Solution

The fourth proportional to 200,690.82, 301,052.66 and 100,799.64 is: 151,207.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,690.82 : 301,052.66 = 100,799.64 : x
  2. Step 2: Convert to fraction form
    200,690.82/301,052.66 = 100,799.64/x
  3. Step 3: Cross multiply
    200,690.82x = 301,052.66 × 100,799.64
  4. Step 4: Simplify right side
    200,690.82x = 30,345,999,245.04
  5. Step 5: Solve for x
    x = 30,345,999,245.04/200,690.82
  6. Step 6: Final answer
    x = 151,207.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.