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Finding the Fourth Proportional to 203,104.54, 304,719.09 and 90,879.22

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Solution

The fourth proportional to 203,104.54, 304,719.09 and 90,879.22 is: 136,346.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,104.54 : 304,719.09 = 90,879.22 : x
  2. Step 2: Convert to fraction form
    203,104.54/304,719.09 = 90,879.22/x
  3. Step 3: Cross multiply
    203,104.54x = 304,719.09 × 90,879.22
  4. Step 4: Simplify right side
    203,104.54x = 27,692,633,218.31
  5. Step 5: Solve for x
    x = 27,692,633,218.31/203,104.54
  6. Step 6: Final answer
    x = 136,346.70

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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.