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Finding the Fourth Proportional to 223,414.57, 335,360.60 and 90,381.79

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Solution

The fourth proportional to 223,414.57, 335,360.60 and 90,381.79 is: 135,669.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,414.57 : 335,360.60 = 90,381.79 : x
  2. Step 2: Convert to fraction form
    223,414.57/335,360.60 = 90,381.79/x
  3. Step 3: Cross multiply
    223,414.57x = 335,360.60 × 90,381.79
  4. Step 4: Simplify right side
    223,414.57x = 30,310,491,323.47
  5. Step 5: Solve for x
    x = 30,310,491,323.47/223,414.57
  6. Step 6: Final answer
    x = 135,669.27

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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.