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Finding the Fourth Proportional to 270,850.80, 406,276.20 and 203,928.60

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Solution

The fourth proportional to 270,850.80, 406,276.20 and 203,928.60 is: 305,892.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,850.80 : 406,276.20 = 203,928.60 : x
  2. Step 2: Convert to fraction form
    270,850.80/406,276.20 = 203,928.60/x
  3. Step 3: Cross multiply
    270,850.80x = 406,276.20 × 203,928.60
  4. Step 4: Simplify right side
    270,850.80x = 82,851,336,679.32
  5. Step 5: Solve for x
    x = 82,851,336,679.32/270,850.80
  6. Step 6: Final answer
    x = 305,892.90

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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.