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Finding the Fourth Proportional to 323,523.89, 485,285.85 and 98,884.97

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Solution

The fourth proportional to 323,523.89, 485,285.85 and 98,884.97 is: 148,327.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,523.89 : 485,285.85 = 98,884.97 : x
  2. Step 2: Convert to fraction form
    323,523.89/485,285.85 = 98,884.97/x
  3. Step 3: Cross multiply
    323,523.89x = 485,285.85 × 98,884.97
  4. Step 4: Simplify right side
    323,523.89x = 47,987,474,292.25
  5. Step 5: Solve for x
    x = 47,987,474,292.25/323,523.89
  6. Step 6: Final answer
    x = 148,327.45

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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.