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Finding the Fourth Proportional to 259,736.96, 389,371.52 and 93,408

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Solution

The fourth proportional to 259,736.96, 389,371.52 and 93,408 is: 140,027.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,736.96 : 389,371.52 = 93,408 : x
  2. Step 2: Convert to fraction form
    259,736.96/389,371.52 = 93,408/x
  3. Step 3: Cross multiply
    259,736.96x = 389,371.52 × 93,408
  4. Step 4: Simplify right side
    259,736.96x = 36,370,414,940.16
  5. Step 5: Solve for x
    x = 36,370,414,940.16/259,736.96
  6. Step 6: Final answer
    x = 140,027.88

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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.