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Finding the Fourth Proportional to 445,336.08, 667,998.44 and 108,377.31

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Solution

The fourth proportional to 445,336.08, 667,998.44 and 108,377.31 is: 162,564.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,336.08 : 667,998.44 = 108,377.31 : x
  2. Step 2: Convert to fraction form
    445,336.08/667,998.44 = 108,377.31/x
  3. Step 3: Cross multiply
    445,336.08x = 667,998.44 × 108,377.31
  4. Step 4: Simplify right side
    445,336.08x = 72,395,873,469.51
  5. Step 5: Solve for x
    x = 72,395,873,469.51/445,336.08
  6. Step 6: Final answer
    x = 162,564.58

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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.