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Finding the Fourth Proportional to 203,907.60, 305,861.40 and 151,419.60

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Solution

The fourth proportional to 203,907.60, 305,861.40 and 151,419.60 is: 227,129.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,907.60 : 305,861.40 = 151,419.60 : x
  2. Step 2: Convert to fraction form
    203,907.60/305,861.40 = 151,419.60/x
  3. Step 3: Cross multiply
    203,907.60x = 305,861.40 × 151,419.60
  4. Step 4: Simplify right side
    203,907.60x = 46,313,410,843.44
  5. Step 5: Solve for x
    x = 46,313,410,843.44/203,907.60
  6. Step 6: Final answer
    x = 227,129.40

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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.