Home / 298,584.75-412,320.80-189,724.95

Finding the Fourth Proportional to 298,584.75, 412,320.80 and 189,724.95

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Solution

The fourth proportional to 298,584.75, 412,320.80 and 189,724.95 is: 261,994.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,584.75 : 412,320.80 = 189,724.95 : x
  2. Step 2: Convert to fraction form
    298,584.75/412,320.80 = 189,724.95/x
  3. Step 3: Cross multiply
    298,584.75x = 412,320.80 × 189,724.95
  4. Step 4: Simplify right side
    298,584.75x = 78,227,543,163.96
  5. Step 5: Solve for x
    x = 78,227,543,163.96/298,584.75
  6. Step 6: Final answer
    x = 261,994.44

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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.