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Finding the Fourth Proportional to 437,611.20, 656,157.60 and 227,659.20

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Solution

The fourth proportional to 437,611.20, 656,157.60 and 227,659.20 is: 341,353.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,611.20 : 656,157.60 = 227,659.20 : x
  2. Step 2: Convert to fraction form
    437,611.20/656,157.60 = 227,659.20/x
  3. Step 3: Cross multiply
    437,611.20x = 656,157.60 × 227,659.20
  4. Step 4: Simplify right side
    437,611.20x = 149,380,314,289.92
  5. Step 5: Solve for x
    x = 149,380,314,289.92/437,611.20
  6. Step 6: Final answer
    x = 341,353.96

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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.