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Finding the Fourth Proportional to 299,300.40, 447,654.60 and 267,937.20

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Solution

The fourth proportional to 299,300.40, 447,654.60 and 267,937.20 is: 400,745.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,300.40 : 447,654.60 = 267,937.20 : x
  2. Step 2: Convert to fraction form
    299,300.40/447,654.60 = 267,937.20/x
  3. Step 3: Cross multiply
    299,300.40x = 447,654.60 × 267,937.20
  4. Step 4: Simplify right side
    299,300.40x = 119,943,320,091.12
  5. Step 5: Solve for x
    x = 119,943,320,091.12/299,300.40
  6. Step 6: Final answer
    x = 400,745.61

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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.