Home / 325,832.20-489,185.70-208,025.80

Finding the Fourth Proportional to 325,832.20, 489,185.70 and 208,025.80

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Solution

The fourth proportional to 325,832.20, 489,185.70 and 208,025.80 is: 312,317.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,832.20 : 489,185.70 = 208,025.80 : x
  2. Step 2: Convert to fraction form
    325,832.20/489,185.70 = 208,025.80/x
  3. Step 3: Cross multiply
    325,832.20x = 489,185.70 × 208,025.80
  4. Step 4: Simplify right side
    325,832.20x = 101,763,246,591.06
  5. Step 5: Solve for x
    x = 101,763,246,591.06/325,832.20
  6. Step 6: Final answer
    x = 312,317.96

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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.