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Finding the Fourth Proportional to 328,780.95, 492,735.43 and 168,850.43

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Solution

The fourth proportional to 328,780.95, 492,735.43 and 168,850.43 is: 253,051.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,780.95 : 492,735.43 = 168,850.43 : x
  2. Step 2: Convert to fraction form
    328,780.95/492,735.43 = 168,850.43/x
  3. Step 3: Cross multiply
    328,780.95x = 492,735.43 × 168,850.43
  4. Step 4: Simplify right side
    328,780.95x = 83,198,589,231.73
  5. Step 5: Solve for x
    x = 83,198,589,231.73/328,780.95
  6. Step 6: Final answer
    x = 253,051.73

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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.