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Finding the Fourth Proportional to 664,408.33, 996,771.26 and 215,129.73

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Solution

The fourth proportional to 664,408.33, 996,771.26 and 215,129.73 is: 322,746.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,408.33 : 996,771.26 = 215,129.73 : x
  2. Step 2: Convert to fraction form
    664,408.33/996,771.26 = 215,129.73/x
  3. Step 3: Cross multiply
    664,408.33x = 996,771.26 × 215,129.73
  4. Step 4: Simplify right side
    664,408.33x = 214,435,132,035.56
  5. Step 5: Solve for x
    x = 214,435,132,035.56/664,408.33
  6. Step 6: Final answer
    x = 322,746.00

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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.