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Finding the Fourth Proportional to 299,992.80, 449,989.20 and 175,576.80

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Solution

The fourth proportional to 299,992.80, 449,989.20 and 175,576.80 is: 263,365.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,992.80 : 449,989.20 = 175,576.80 : x
  2. Step 2: Convert to fraction form
    299,992.80/449,989.20 = 175,576.80/x
  3. Step 3: Cross multiply
    299,992.80x = 449,989.20 × 175,576.80
  4. Step 4: Simplify right side
    299,992.80x = 79,007,663,770.56
  5. Step 5: Solve for x
    x = 79,007,663,770.56/299,992.80
  6. Step 6: Final answer
    x = 263,365.20

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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.