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Finding the Fourth Proportional to 203,832.48, 305,631 and 79,027.68

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Solution

The fourth proportional to 203,832.48, 305,631 and 79,027.68 is: 118,495.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,832.48 : 305,631 = 79,027.68 : x
  2. Step 2: Convert to fraction form
    203,832.48/305,631 = 79,027.68/x
  3. Step 3: Cross multiply
    203,832.48x = 305,631 × 79,027.68
  4. Step 4: Simplify right side
    203,832.48x = 24,153,308,866.08
  5. Step 5: Solve for x
    x = 24,153,308,866.08/203,832.48
  6. Step 6: Final answer
    x = 118,495.88

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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.