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Finding the Fourth Proportional to 445,830.51, 667,716.26 and 267,945.60

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Solution

The fourth proportional to 445,830.51, 667,716.26 and 267,945.60 is: 401,299.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,830.51 : 667,716.26 = 267,945.60 : x
  2. Step 2: Convert to fraction form
    445,830.51/667,716.26 = 267,945.60/x
  3. Step 3: Cross multiply
    445,830.51x = 667,716.26 × 267,945.60
  4. Step 4: Simplify right side
    445,830.51x = 178,911,632,575.73
  5. Step 5: Solve for x
    x = 178,911,632,575.73/445,830.51
  6. Step 6: Final answer
    x = 401,299.66

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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.