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Finding the Fourth Proportional to 400,067.60, 600,101.40 and 133,836.80

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Solution

The fourth proportional to 400,067.60, 600,101.40 and 133,836.80 is: 200,755.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,067.60 : 600,101.40 = 133,836.80 : x
  2. Step 2: Convert to fraction form
    400,067.60/600,101.40 = 133,836.80/x
  3. Step 3: Cross multiply
    400,067.60x = 600,101.40 × 133,836.80
  4. Step 4: Simplify right side
    400,067.60x = 80,315,651,051.52
  5. Step 5: Solve for x
    x = 80,315,651,051.52/400,067.60
  6. Step 6: Final answer
    x = 200,755.20

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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.