Home / 247,998.43-371,992.78-81,786.43

Finding the Fourth Proportional to 247,998.43, 371,992.78 and 81,786.43

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Solution

The fourth proportional to 247,998.43, 371,992.78 and 81,786.43 is: 122,678.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,998.43 : 371,992.78 = 81,786.43 : x
  2. Step 2: Convert to fraction form
    247,998.43/371,992.78 = 81,786.43/x
  3. Step 3: Cross multiply
    247,998.43x = 371,992.78 × 81,786.43
  4. Step 4: Simplify right side
    247,998.43x = 30,423,961,461.98
  5. Step 5: Solve for x
    x = 30,423,961,461.98/247,998.43
  6. Step 6: Final answer
    x = 122,678.04

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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.