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Finding the Fourth Proportional to 327,679.60, 491,130.60 and 169,826.80

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Solution

The fourth proportional to 327,679.60, 491,130.60 and 169,826.80 is: 254,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,679.60 : 491,130.60 = 169,826.80 : x
  2. Step 2: Convert to fraction form
    327,679.60/491,130.60 = 169,826.80/x
  3. Step 3: Cross multiply
    327,679.60x = 491,130.60 × 169,826.80
  4. Step 4: Simplify right side
    327,679.60x = 83,407,138,180.08
  5. Step 5: Solve for x
    x = 83,407,138,180.08/327,679.60
  6. Step 6: Final answer
    x = 254,538.70

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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.