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Finding the Fourth Proportional to 445,331.83, 667,999.10 and 108,372.54

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Solution

The fourth proportional to 445,331.83, 667,999.10 and 108,372.54 is: 162,559.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,331.83 : 667,999.10 = 108,372.54 : x
  2. Step 2: Convert to fraction form
    445,331.83/667,999.10 = 108,372.54/x
  3. Step 3: Cross multiply
    445,331.83x = 667,999.10 × 108,372.54
  4. Step 4: Simplify right side
    445,331.83x = 72,392,759,184.71
  5. Step 5: Solve for x
    x = 72,392,759,184.71/445,331.83
  6. Step 6: Final answer
    x = 162,559.14

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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.