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Finding the Fourth Proportional to 263,999.20, 395,998.80 and 169,520.80

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Solution

The fourth proportional to 263,999.20, 395,998.80 and 169,520.80 is: 254,281.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,999.20 : 395,998.80 = 169,520.80 : x
  2. Step 2: Convert to fraction form
    263,999.20/395,998.80 = 169,520.80/x
  3. Step 3: Cross multiply
    263,999.20x = 395,998.80 × 169,520.80
  4. Step 4: Simplify right side
    263,999.20x = 67,130,033,375.04
  5. Step 5: Solve for x
    x = 67,130,033,375.04/263,999.20
  6. Step 6: Final answer
    x = 254,281.20

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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.