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Finding the Fourth Proportional to 322,378.30, 444,861.70 and 179,129.80

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Solution

The fourth proportional to 322,378.30, 444,861.70 and 179,129.80 is: 247,187.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,378.30 : 444,861.70 = 179,129.80 : x
  2. Step 2: Convert to fraction form
    322,378.30/444,861.70 = 179,129.80/x
  3. Step 3: Cross multiply
    322,378.30x = 444,861.70 × 179,129.80
  4. Step 4: Simplify right side
    322,378.30x = 79,687,987,348.66
  5. Step 5: Solve for x
    x = 79,687,987,348.66/322,378.30
  6. Step 6: Final answer
    x = 247,187.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.