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Finding the Fourth Proportional to 351,992.73, 485,747.64 and 190,847.28

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Solution

The fourth proportional to 351,992.73, 485,747.64 and 190,847.28 is: 263,367.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,992.73 : 485,747.64 = 190,847.28 : x
  2. Step 2: Convert to fraction form
    351,992.73/485,747.64 = 190,847.28/x
  3. Step 3: Cross multiply
    351,992.73x = 485,747.64 × 190,847.28
  4. Step 4: Simplify right side
    351,992.73x = 92,703,615,860.42
  5. Step 5: Solve for x
    x = 92,703,615,860.42/351,992.73
  6. Step 6: Final answer
    x = 263,367.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.