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Finding the Fourth Proportional to 230,546.57, 345,850.09 and 90,286.97

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Solution

The fourth proportional to 230,546.57, 345,850.09 and 90,286.97 is: 135,442.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,546.57 : 345,850.09 = 90,286.97 : x
  2. Step 2: Convert to fraction form
    230,546.57/345,850.09 = 90,286.97/x
  3. Step 3: Cross multiply
    230,546.57x = 345,850.09 × 90,286.97
  4. Step 4: Simplify right side
    230,546.57x = 31,225,754,745.36
  5. Step 5: Solve for x
    x = 31,225,754,745.36/230,546.57
  6. Step 6: Final answer
    x = 135,442.29

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1.5x scale

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.