Home / 445,128.96-667,724.04-178,889.70

Finding the Fourth Proportional to 445,128.96, 667,724.04 and 178,889.70

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Solution

The fourth proportional to 445,128.96, 667,724.04 and 178,889.70 is: 268,346.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,128.96 : 667,724.04 = 178,889.70 : x
  2. Step 2: Convert to fraction form
    445,128.96/667,724.04 = 178,889.70/x
  3. Step 3: Cross multiply
    445,128.96x = 667,724.04 × 178,889.70
  4. Step 4: Simplify right side
    445,128.96x = 119,448,953,198.39
  5. Step 5: Solve for x
    x = 119,448,953,198.39/445,128.96
  6. Step 6: Final answer
    x = 268,346.85

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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.