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Finding the Fourth Proportional to 445,329.08, 667,994.97 and 108,369.79

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Solution

The fourth proportional to 445,329.08, 667,994.97 and 108,369.79 is: 162,555.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,329.08 : 667,994.97 = 108,369.79 : x
  2. Step 2: Convert to fraction form
    445,329.08/667,994.97 = 108,369.79/x
  3. Step 3: Cross multiply
    445,329.08x = 667,994.97 × 108,369.79
  4. Step 4: Simplify right side
    445,329.08x = 72,390,474,619.96
  5. Step 5: Solve for x
    x = 72,390,474,619.96/445,329.08
  6. Step 6: Final answer
    x = 162,555.01

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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.