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Finding the Fourth Proportional to 292,481.82, 438,720.71 and 82,119.96

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Solution

The fourth proportional to 292,481.82, 438,720.71 and 82,119.96 is: 123,179.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,481.82 : 438,720.71 = 82,119.96 : x
  2. Step 2: Convert to fraction form
    292,481.82/438,720.71 = 82,119.96/x
  3. Step 3: Cross multiply
    292,481.82x = 438,720.71 × 82,119.96
  4. Step 4: Simplify right side
    292,481.82x = 36,027,726,745.77
  5. Step 5: Solve for x
    x = 36,027,726,745.77/292,481.82
  6. Step 6: Final answer
    x = 123,179.37

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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.