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Finding the Fourth Proportional to 322,170.66, 483,218.46 and 85,531.73

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Solution

The fourth proportional to 322,170.66, 483,218.46 and 85,531.73 is: 128,287.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,170.66 : 483,218.46 = 85,531.73 : x
  2. Step 2: Convert to fraction form
    322,170.66/483,218.46 = 85,531.73/x
  3. Step 3: Cross multiply
    322,170.66x = 483,218.46 × 85,531.73
  4. Step 4: Simplify right side
    322,170.66x = 41,330,508,435.64
  5. Step 5: Solve for x
    x = 41,330,508,435.64/322,170.66
  6. Step 6: Final answer
    x = 128,287.62

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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.