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Finding the Fourth Proportional to 279,763.02, 419,768.56 and 146,611.62

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Solution

The fourth proportional to 279,763.02, 419,768.56 and 146,611.62 is: 219,982.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,763.02 : 419,768.56 = 146,611.62 : x
  2. Step 2: Convert to fraction form
    279,763.02/419,768.56 = 146,611.62/x
  3. Step 3: Cross multiply
    279,763.02x = 419,768.56 × 146,611.62
  4. Step 4: Simplify right side
    279,763.02x = 61,542,948,606.67
  5. Step 5: Solve for x
    x = 61,542,948,606.67/279,763.02
  6. Step 6: Final answer
    x = 219,982.43

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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.