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Finding the Fourth Proportional to 203,608.31, 280,884.98 and 127,077.89

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Solution

The fourth proportional to 203,608.31, 280,884.98 and 127,077.89 is: 175,308.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,608.31 : 280,884.98 = 127,077.89 : x
  2. Step 2: Convert to fraction form
    203,608.31/280,884.98 = 127,077.89/x
  3. Step 3: Cross multiply
    203,608.31x = 280,884.98 × 127,077.89
  4. Step 4: Simplify right side
    203,608.31x = 35,694,269,504.36
  5. Step 5: Solve for x
    x = 35,694,269,504.36/203,608.31
  6. Step 6: Final answer
    x = 175,308.51

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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.