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Finding the Fourth Proportional to 247,745.63, 341,912.82 and 138,849.44

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Solution

The fourth proportional to 247,745.63, 341,912.82 and 138,849.44 is: 191,625.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,745.63 : 341,912.82 = 138,849.44 : x
  2. Step 2: Convert to fraction form
    247,745.63/341,912.82 = 138,849.44/x
  3. Step 3: Cross multiply
    247,745.63x = 341,912.82 × 138,849.44
  4. Step 4: Simplify right side
    247,745.63x = 47,474,402,396.94
  5. Step 5: Solve for x
    x = 47,474,402,396.94/247,745.63
  6. Step 6: Final answer
    x = 191,625.59

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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.