Home / 345,994.43-518,745.56-132,581.50

Finding the Fourth Proportional to 345,994.43, 518,745.56 and 132,581.50

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Solution

The fourth proportional to 345,994.43, 518,745.56 and 132,581.50 is: 198,777.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,994.43 : 518,745.56 = 132,581.50 : x
  2. Step 2: Convert to fraction form
    345,994.43/518,745.56 = 132,581.50/x
  3. Step 3: Cross multiply
    345,994.43x = 518,745.56 × 132,581.50
  4. Step 4: Simplify right side
    345,994.43x = 68,776,063,497.73
  5. Step 5: Solve for x
    x = 68,776,063,497.73/345,994.43
  6. Step 6: Final answer
    x = 198,777.95

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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.