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Finding the Fourth Proportional to 323,832.42, 485,781.02 and 99,190.26

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Solution

The fourth proportional to 323,832.42, 485,781.02 and 99,190.26 is: 148,795.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,832.42 : 485,781.02 = 99,190.26 : x
  2. Step 2: Convert to fraction form
    323,832.42/485,781.02 = 99,190.26/x
  3. Step 3: Cross multiply
    323,832.42x = 485,781.02 × 99,190.26
  4. Step 4: Simplify right side
    323,832.42x = 48,184,745,676.87
  5. Step 5: Solve for x
    x = 48,184,745,676.87/323,832.42
  6. Step 6: Final answer
    x = 148,795.31

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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.