Home / 298,716.87-447,902.78-98,983.43

Finding the Fourth Proportional to 298,716.87, 447,902.78 and 98,983.43

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Solution

The fourth proportional to 298,716.87, 447,902.78 and 98,983.43 is: 148,417.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,716.87 : 447,902.78 = 98,983.43 : x
  2. Step 2: Convert to fraction form
    298,716.87/447,902.78 = 98,983.43/x
  3. Step 3: Cross multiply
    298,716.87x = 447,902.78 × 98,983.43
  4. Step 4: Simplify right side
    298,716.87x = 44,334,950,736.50
  5. Step 5: Solve for x
    x = 44,334,950,736.50/298,716.87
  6. Step 6: Final answer
    x = 148,417.97

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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.