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Finding the Fourth Proportional to 351,795.54, 485,477.11 and 190,654.55

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Solution

The fourth proportional to 351,795.54, 485,477.11 and 190,654.55 is: 263,102.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,795.54 : 485,477.11 = 190,654.55 : x
  2. Step 2: Convert to fraction form
    351,795.54/485,477.11 = 190,654.55/x
  3. Step 3: Cross multiply
    351,795.54x = 485,477.11 × 190,654.55
  4. Step 4: Simplify right side
    351,795.54x = 92,558,419,942.35
  5. Step 5: Solve for x
    x = 92,558,419,942.35/351,795.54
  6. Step 6: Final answer
    x = 263,102.88

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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.