Home / 198,778.43-273,621.70-173,240.90

Finding the Fourth Proportional to 198,778.43, 273,621.70 and 173,240.90

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Solution

The fourth proportional to 198,778.43, 273,621.70 and 173,240.90 is: 238,468.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,778.43 : 273,621.70 = 173,240.90 : x
  2. Step 2: Convert to fraction form
    198,778.43/273,621.70 = 173,240.90/x
  3. Step 3: Cross multiply
    198,778.43x = 273,621.70 × 173,240.90
  4. Step 4: Simplify right side
    198,778.43x = 47,402,467,766.32
  5. Step 5: Solve for x
    x = 47,402,467,766.32/198,778.43
  6. Step 6: Final answer
    x = 238,468.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.