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Finding the Fourth Proportional to 300,808.64, 451,213.97 and 76,168.97

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Solution

The fourth proportional to 300,808.64, 451,213.97 and 76,168.97 is: 114,253.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,808.64 : 451,213.97 = 76,168.97 : x
  2. Step 2: Convert to fraction form
    300,808.64/451,213.97 = 76,168.97/x
  3. Step 3: Cross multiply
    300,808.64x = 451,213.97 × 76,168.97
  4. Step 4: Simplify right side
    300,808.64x = 34,368,501,088.44
  5. Step 5: Solve for x
    x = 34,368,501,088.44/300,808.64
  6. Step 6: Final answer
    x = 114,253.71

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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.