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Finding the Fourth Proportional to 222,839.07, 307,418.40 and 132,198.90

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Solution

The fourth proportional to 222,839.07, 307,418.40 and 132,198.90 is: 182,375.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,839.07 : 307,418.40 = 132,198.90 : x
  2. Step 2: Convert to fraction form
    222,839.07/307,418.40 = 132,198.90/x
  3. Step 3: Cross multiply
    222,839.07x = 307,418.40 × 132,198.90
  4. Step 4: Simplify right side
    222,839.07x = 40,640,374,319.76
  5. Step 5: Solve for x
    x = 40,640,374,319.76/222,839.07
  6. Step 6: Final answer
    x = 182,375.44

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1.5x scale

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.