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Finding the Fourth Proportional to 203,889.60, 305,229.60 and 151,531.20

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Solution

The fourth proportional to 203,889.60, 305,229.60 and 151,531.20 is: 226,847.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,889.60 : 305,229.60 = 151,531.20 : x
  2. Step 2: Convert to fraction form
    203,889.60/305,229.60 = 151,531.20/x
  3. Step 3: Cross multiply
    203,889.60x = 305,229.60 × 151,531.20
  4. Step 4: Simplify right side
    203,889.60x = 46,251,807,563.52
  5. Step 5: Solve for x
    x = 46,251,807,563.52/203,889.60
  6. Step 6: Final answer
    x = 226,847.31

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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.