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Finding the Fourth Proportional to 422,305.32, 633,086.67 and 219,474.36

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Solution

The fourth proportional to 422,305.32, 633,086.67 and 219,474.36 is: 329,018.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,305.32 : 633,086.67 = 219,474.36 : x
  2. Step 2: Convert to fraction form
    422,305.32/633,086.67 = 219,474.36/x
  3. Step 3: Cross multiply
    422,305.32x = 633,086.67 × 219,474.36
  4. Step 4: Simplify right side
    422,305.32x = 138,946,291,722.78
  5. Step 5: Solve for x
    x = 138,946,291,722.78/422,305.32
  6. Step 6: Final answer
    x = 329,018.57

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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.