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Finding the Fourth Proportional to 226,992.80, 339,970.80 and 133,680.80

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Solution

The fourth proportional to 226,992.80, 339,970.80 and 133,680.80 is: 200,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,992.80 : 339,970.80 = 133,680.80 : x
  2. Step 2: Convert to fraction form
    226,992.80/339,970.80 = 133,680.80/x
  3. Step 3: Cross multiply
    226,992.80x = 339,970.80 × 133,680.80
  4. Step 4: Simplify right side
    226,992.80x = 45,447,568,520.64
  5. Step 5: Solve for x
    x = 45,447,568,520.64/226,992.80
  6. Step 6: Final answer
    x = 200,215.90

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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.