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Finding the Fourth Proportional to 445,540.64, 668,304.88 and 108,583.88

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Solution

The fourth proportional to 445,540.64, 668,304.88 and 108,583.88 is: 162,874.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,540.64 : 668,304.88 = 108,583.88 : x
  2. Step 2: Convert to fraction form
    445,540.64/668,304.88 = 108,583.88/x
  3. Step 3: Cross multiply
    445,540.64x = 668,304.88 × 108,583.88
  4. Step 4: Simplify right side
    445,540.64x = 72,567,133,280.35
  5. Step 5: Solve for x
    x = 72,567,133,280.35/445,540.64
  6. Step 6: Final answer
    x = 162,874.33

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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.