Home / 247,966.20-371,949.30-81,732.60

Finding the Fourth Proportional to 247,966.20, 371,949.30 and 81,732.60

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Solution

The fourth proportional to 247,966.20, 371,949.30 and 81,732.60 is: 122,598.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,966.20 : 371,949.30 = 81,732.60 : x
  2. Step 2: Convert to fraction form
    247,966.20/371,949.30 = 81,732.60/x
  3. Step 3: Cross multiply
    247,966.20x = 371,949.30 × 81,732.60
  4. Step 4: Simplify right side
    247,966.20x = 30,400,383,357.18
  5. Step 5: Solve for x
    x = 30,400,383,357.18/247,966.20
  6. Step 6: Final answer
    x = 122,598.90

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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.