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Finding the Fourth Proportional to 227,012.80, 340,000.80 and 133,700.80

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Solution

The fourth proportional to 227,012.80, 340,000.80 and 133,700.80 is: 200,245.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,012.80 : 340,000.80 = 133,700.80 : x
  2. Step 2: Convert to fraction form
    227,012.80/340,000.80 = 133,700.80/x
  3. Step 3: Cross multiply
    227,012.80x = 340,000.80 × 133,700.80
  4. Step 4: Simplify right side
    227,012.80x = 45,458,378,960.64
  5. Step 5: Solve for x
    x = 45,458,378,960.64/227,012.80
  6. Step 6: Final answer
    x = 200,245.88

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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.