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Finding the Fourth Proportional to 664,228.60, 996,213.30 and 214,840.60

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Solution

The fourth proportional to 664,228.60, 996,213.30 and 214,840.60 is: 322,218.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,228.60 : 996,213.30 = 214,840.60 : x
  2. Step 2: Convert to fraction form
    664,228.60/996,213.30 = 214,840.60/x
  3. Step 3: Cross multiply
    664,228.60x = 996,213.30 × 214,840.60
  4. Step 4: Simplify right side
    664,228.60x = 214,027,063,099.98
  5. Step 5: Solve for x
    x = 214,027,063,099.98/664,228.60
  6. Step 6: Final answer
    x = 322,218.98

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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.