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Finding the Fourth Proportional to 207,903, 311,873.94 and 67,623.96

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Solution

The fourth proportional to 207,903, 311,873.94 and 67,623.96 is: 101,442.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,903 : 311,873.94 = 67,623.96 : x
  2. Step 2: Convert to fraction form
    207,903/311,873.94 = 67,623.96/x
  3. Step 3: Cross multiply
    207,903x = 311,873.94 × 67,623.96
  4. Step 4: Simplify right side
    207,903x = 21,090,150,843.60
  5. Step 5: Solve for x
    x = 21,090,150,843.60/207,903
  6. Step 6: Final answer
    x = 101,442.26

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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.