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Finding the Fourth Proportional to 400,441.80, 600,662.70 and 251,142.60

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Solution

The fourth proportional to 400,441.80, 600,662.70 and 251,142.60 is: 376,713.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,441.80 : 600,662.70 = 251,142.60 : x
  2. Step 2: Convert to fraction form
    400,441.80/600,662.70 = 251,142.60/x
  3. Step 3: Cross multiply
    400,441.80x = 600,662.70 × 251,142.60
  4. Step 4: Simplify right side
    400,441.80x = 150,851,992,201.02
  5. Step 5: Solve for x
    x = 150,851,992,201.02/400,441.80
  6. Step 6: Final answer
    x = 376,713.90

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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.