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Finding the Fourth Proportional to 227,589, 314,072.60 and 126,987

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Solution

The fourth proportional to 227,589, 314,072.60 and 126,987 is: 175,241.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,589 : 314,072.60 = 126,987 : x
  2. Step 2: Convert to fraction form
    227,589/314,072.60 = 126,987/x
  3. Step 3: Cross multiply
    227,589x = 314,072.60 × 126,987
  4. Step 4: Simplify right side
    227,589x = 39,883,137,256.20
  5. Step 5: Solve for x
    x = 39,883,137,256.20/227,589
  6. Step 6: Final answer
    x = 175,241.94

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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.