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Finding the Fourth Proportional to 323,597.89, 485,015.59 and 145,896.85

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Solution

The fourth proportional to 323,597.89, 485,015.59 and 145,896.85 is: 218,673.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,597.89 : 485,015.59 = 145,896.85 : x
  2. Step 2: Convert to fraction form
    323,597.89/485,015.59 = 145,896.85/x
  3. Step 3: Cross multiply
    323,597.89x = 485,015.59 × 145,896.85
  4. Step 4: Simplify right side
    323,597.89x = 70,762,246,781.89
  5. Step 5: Solve for x
    x = 70,762,246,781.89/323,597.89
  6. Step 6: Final answer
    x = 218,673.39

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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.