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Finding the Fourth Proportional to 168,769.20, 253,153.80 and 149,086.20

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Solution

The fourth proportional to 168,769.20, 253,153.80 and 149,086.20 is: 223,629.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,769.20 : 253,153.80 = 149,086.20 : x
  2. Step 2: Convert to fraction form
    168,769.20/253,153.80 = 149,086.20/x
  3. Step 3: Cross multiply
    168,769.20x = 253,153.80 × 149,086.20
  4. Step 4: Simplify right side
    168,769.20x = 37,741,738,057.56
  5. Step 5: Solve for x
    x = 37,741,738,057.56/168,769.20
  6. Step 6: Final answer
    x = 223,629.30

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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.