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Finding the Fourth Proportional to 445,836.39, 668,239.42 and 205,447.69

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Solution

The fourth proportional to 445,836.39, 668,239.42 and 205,447.69 is: 307,934.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,836.39 : 668,239.42 = 205,447.69 : x
  2. Step 2: Convert to fraction form
    445,836.39/668,239.42 = 205,447.69/x
  3. Step 3: Cross multiply
    445,836.39x = 668,239.42 × 205,447.69
  4. Step 4: Simplify right side
    445,836.39x = 137,288,244,178.70
  5. Step 5: Solve for x
    x = 137,288,244,178.70/445,836.39
  6. Step 6: Final answer
    x = 307,934.14

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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.