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Finding the Fourth Proportional to 226,190.88, 339,286.32 and 76,431.60

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Solution

The fourth proportional to 226,190.88, 339,286.32 and 76,431.60 is: 114,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,190.88 : 339,286.32 = 76,431.60 : x
  2. Step 2: Convert to fraction form
    226,190.88/339,286.32 = 76,431.60/x
  3. Step 3: Cross multiply
    226,190.88x = 339,286.32 × 76,431.60
  4. Step 4: Simplify right side
    226,190.88x = 25,932,196,295.71
  5. Step 5: Solve for x
    x = 25,932,196,295.71/226,190.88
  6. Step 6: Final answer
    x = 114,647.40

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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.