Home / 275,179.32-412,185.78-207,878.04

Finding the Fourth Proportional to 275,179.32, 412,185.78 and 207,878.04

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Solution

The fourth proportional to 275,179.32, 412,185.78 and 207,878.04 is: 311,376.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,179.32 : 412,185.78 = 207,878.04 : x
  2. Step 2: Convert to fraction form
    275,179.32/412,185.78 = 207,878.04/x
  3. Step 3: Cross multiply
    275,179.32x = 412,185.78 × 207,878.04
  4. Step 4: Simplify right side
    275,179.32x = 85,684,372,062.27
  5. Step 5: Solve for x
    x = 85,684,372,062.27/275,179.32
  6. Step 6: Final answer
    x = 311,376.49

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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.