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Finding the Fourth Proportional to 547,067.60, 820,212.60 and 247,691.60

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Solution

The fourth proportional to 547,067.60, 820,212.60 and 247,691.60 is: 371,361.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,067.60 : 820,212.60 = 247,691.60 : x
  2. Step 2: Convert to fraction form
    547,067.60/820,212.60 = 247,691.60/x
  3. Step 3: Cross multiply
    547,067.60x = 820,212.60 × 247,691.60
  4. Step 4: Simplify right side
    547,067.60x = 203,159,771,234.16
  5. Step 5: Solve for x
    x = 203,159,771,234.16/547,067.60
  6. Step 6: Final answer
    x = 371,361.37

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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.