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Finding the Fourth Proportional to 222,422.80, 333,634.20 and 133,630.60

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Solution

The fourth proportional to 222,422.80, 333,634.20 and 133,630.60 is: 200,445.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,422.80 : 333,634.20 = 133,630.60 : x
  2. Step 2: Convert to fraction form
    222,422.80/333,634.20 = 133,630.60/x
  3. Step 3: Cross multiply
    222,422.80x = 333,634.20 × 133,630.60
  4. Step 4: Simplify right side
    222,422.80x = 44,583,738,326.52
  5. Step 5: Solve for x
    x = 44,583,738,326.52/222,422.80
  6. Step 6: Final answer
    x = 200,445.90

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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.