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Finding the Fourth Proportional to 451,157, 676,781.22 and 166,922.60

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Solution

The fourth proportional to 451,157, 676,781.22 and 166,922.60 is: 250,400.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,157 : 676,781.22 = 166,922.60 : x
  2. Step 2: Convert to fraction form
    451,157/676,781.22 = 166,922.60/x
  3. Step 3: Cross multiply
    451,157x = 676,781.22 × 166,922.60
  4. Step 4: Simplify right side
    451,157x = 112,970,080,873.57
  5. Step 5: Solve for x
    x = 112,970,080,873.57/451,157
  6. Step 6: Final answer
    x = 250,400.82

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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.