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Finding the Fourth Proportional to 445,583.80, 668,374.10 and 108,620.60

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Solution

The fourth proportional to 445,583.80, 668,374.10 and 108,620.60 is: 162,930.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,583.80 : 668,374.10 = 108,620.60 : x
  2. Step 2: Convert to fraction form
    445,583.80/668,374.10 = 108,620.60/x
  3. Step 3: Cross multiply
    445,583.80x = 668,374.10 × 108,620.60
  4. Step 4: Simplify right side
    445,583.80x = 72,599,195,766.46
  5. Step 5: Solve for x
    x = 72,599,195,766.46/445,583.80
  6. Step 6: Final answer
    x = 162,930.51

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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.