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Finding the Fourth Proportional to 647,273.20, 970,909.80 and 226,591.60

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Solution

The fourth proportional to 647,273.20, 970,909.80 and 226,591.60 is: 339,887.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,273.20 : 970,909.80 = 226,591.60 : x
  2. Step 2: Convert to fraction form
    647,273.20/970,909.80 = 226,591.60/x
  3. Step 3: Cross multiply
    647,273.20x = 970,909.80 × 226,591.60
  4. Step 4: Simplify right side
    647,273.20x = 220,000,005,037.68
  5. Step 5: Solve for x
    x = 220,000,005,037.68/647,273.20
  6. Step 6: Final answer
    x = 339,887.40

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Similar ratio
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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.