Home / 322,481.05-445,144.61-242,140.69

Finding the Fourth Proportional to 322,481.05, 445,144.61 and 242,140.69

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Solution

The fourth proportional to 322,481.05, 445,144.61 and 242,140.69 is: 334,244.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,481.05 : 445,144.61 = 242,140.69 : x
  2. Step 2: Convert to fraction form
    322,481.05/445,144.61 = 242,140.69/x
  3. Step 3: Cross multiply
    322,481.05x = 445,144.61 × 242,140.69
  4. Step 4: Simplify right side
    322,481.05x = 107,787,624,176.96
  5. Step 5: Solve for x
    x = 107,787,624,176.96/322,481.05
  6. Step 6: Final answer
    x = 334,244.83

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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.