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Finding the Fourth Proportional to 312,375.22, 430,755.59 and 267,202.73

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Solution

The fourth proportional to 312,375.22, 430,755.59 and 267,202.73 is: 368,464.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,375.22 : 430,755.59 = 267,202.73 : x
  2. Step 2: Convert to fraction form
    312,375.22/430,755.59 = 267,202.73/x
  3. Step 3: Cross multiply
    312,375.22x = 430,755.59 × 267,202.73
  4. Step 4: Simplify right side
    312,375.22x = 115,099,071,355.66
  5. Step 5: Solve for x
    x = 115,099,071,355.66/312,375.22
  6. Step 6: Final answer
    x = 368,464.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.