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Finding the Fourth Proportional to 664,353.20, 996,675.60 and 214,997.60

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Solution

The fourth proportional to 664,353.20, 996,675.60 and 214,997.60 is: 322,543.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,353.20 : 996,675.60 = 214,997.60 : x
  2. Step 2: Convert to fraction form
    664,353.20/996,675.60 = 214,997.60/x
  3. Step 3: Cross multiply
    664,353.20x = 996,675.60 × 214,997.60
  4. Step 4: Simplify right side
    664,353.20x = 214,282,861,978.56
  5. Step 5: Solve for x
    x = 214,282,861,978.56/664,353.20
  6. Step 6: Final answer
    x = 322,543.58

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1.5x scale

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.