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Finding the Fourth Proportional to 323,739.37, 485,591.73 and 99,099.91

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Solution

The fourth proportional to 323,739.37, 485,591.73 and 99,099.91 is: 148,644.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,739.37 : 485,591.73 = 99,099.91 : x
  2. Step 2: Convert to fraction form
    323,739.37/485,591.73 = 99,099.91/x
  3. Step 3: Cross multiply
    323,739.37x = 485,591.73 × 99,099.91
  4. Step 4: Simplify right side
    323,739.37x = 48,122,096,739.74
  5. Step 5: Solve for x
    x = 48,122,096,739.74/323,739.37
  6. Step 6: Final answer
    x = 148,644.56

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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.