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Finding the Fourth Proportional to 445,818.44, 668,212.67 and 205,429.75

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Solution

The fourth proportional to 445,818.44, 668,212.67 and 205,429.75 is: 307,907.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,818.44 : 668,212.67 = 205,429.75 : x
  2. Step 2: Convert to fraction form
    445,818.44/668,212.67 = 205,429.75/x
  3. Step 3: Cross multiply
    445,818.44x = 668,212.67 × 205,429.75
  4. Step 4: Simplify right side
    445,818.44x = 137,270,760,587.98
  5. Step 5: Solve for x
    x = 137,270,760,587.98/445,818.44
  6. Step 6: Final answer
    x = 307,907.32

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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.