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Finding the Fourth Proportional to 222,847, 307,528.92 and 122,245

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Solution

The fourth proportional to 222,847, 307,528.92 and 122,245 is: 168,698.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,847 : 307,528.92 = 122,245 : x
  2. Step 2: Convert to fraction form
    222,847/307,528.92 = 122,245/x
  3. Step 3: Cross multiply
    222,847x = 307,528.92 × 122,245
  4. Step 4: Simplify right side
    222,847x = 37,593,872,825.40
  5. Step 5: Solve for x
    x = 37,593,872,825.40/222,847
  6. Step 6: Final answer
    x = 168,698.13

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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.