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Finding the Fourth Proportional to 227,080.80, 340,160.40 and 128,469.60

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Solution

The fourth proportional to 227,080.80, 340,160.40 and 128,469.60 is: 192,443.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,080.80 : 340,160.40 = 128,469.60 : x
  2. Step 2: Convert to fraction form
    227,080.80/340,160.40 = 128,469.60/x
  3. Step 3: Cross multiply
    227,080.80x = 340,160.40 × 128,469.60
  4. Step 4: Simplify right side
    227,080.80x = 43,700,270,523.84
  5. Step 5: Solve for x
    x = 43,700,270,523.84/227,080.80
  6. Step 6: Final answer
    x = 192,443.71

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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.