Home / 445,145.71-667,749.39-178,906.45

Finding the Fourth Proportional to 445,145.71, 667,749.39 and 178,906.45

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Solution

The fourth proportional to 445,145.71, 667,749.39 and 178,906.45 is: 268,372.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,145.71 : 667,749.39 = 178,906.45 : x
  2. Step 2: Convert to fraction form
    445,145.71/667,749.39 = 178,906.45/x
  3. Step 3: Cross multiply
    445,145.71x = 667,749.39 × 178,906.45
  4. Step 4: Simplify right side
    445,145.71x = 119,464,672,854.57
  5. Step 5: Solve for x
    x = 119,464,672,854.57/445,145.71
  6. Step 6: Final answer
    x = 268,372.06

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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.