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Finding the Fourth Proportional to 275,189.52, 412,756.56 and 75,530.02

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Solution

The fourth proportional to 275,189.52, 412,756.56 and 75,530.02 is: 113,287.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,189.52 : 412,756.56 = 75,530.02 : x
  2. Step 2: Convert to fraction form
    275,189.52/412,756.56 = 75,530.02/x
  3. Step 3: Cross multiply
    275,189.52x = 412,756.56 × 75,530.02
  4. Step 4: Simplify right side
    275,189.52x = 31,175,511,231.93
  5. Step 5: Solve for x
    x = 31,175,511,231.93/275,189.52
  6. Step 6: Final answer
    x = 113,287.42

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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.