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Finding the Fourth Proportional to 223,853.92, 335,781.60 and 90,736.80

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Solution

The fourth proportional to 223,853.92, 335,781.60 and 90,736.80 is: 136,105.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,853.92 : 335,781.60 = 90,736.80 : x
  2. Step 2: Convert to fraction form
    223,853.92/335,781.60 = 90,736.80/x
  3. Step 3: Cross multiply
    223,853.92x = 335,781.60 × 90,736.80
  4. Step 4: Simplify right side
    223,853.92x = 30,467,747,882.88
  5. Step 5: Solve for x
    x = 30,467,747,882.88/223,853.92
  6. Step 6: Final answer
    x = 136,105.49

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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.