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Finding the Fourth Proportional to 203,190.80, 304,638.54 and 84,895.97

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Solution

The fourth proportional to 203,190.80, 304,638.54 and 84,895.97 is: 127,282.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,190.80 : 304,638.54 = 84,895.97 : x
  2. Step 2: Convert to fraction form
    203,190.80/304,638.54 = 84,895.97/x
  3. Step 3: Cross multiply
    203,190.80x = 304,638.54 × 84,895.97
  4. Step 4: Simplify right side
    203,190.80x = 25,862,584,352.68
  5. Step 5: Solve for x
    x = 25,862,584,352.68/203,190.80
  6. Step 6: Final answer
    x = 127,282.26

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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.