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Finding the Fourth Proportional to 275,288.62, 412,853.60 and 75,615.52

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Solution

The fourth proportional to 275,288.62, 412,853.60 and 75,615.52 is: 113,401.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,288.62 : 412,853.60 = 75,615.52 : x
  2. Step 2: Convert to fraction form
    275,288.62/412,853.60 = 75,615.52/x
  3. Step 3: Cross multiply
    275,288.62x = 412,853.60 × 75,615.52
  4. Step 4: Simplify right side
    275,288.62x = 31,218,139,647.87
  5. Step 5: Solve for x
    x = 31,218,139,647.87/275,288.62
  6. Step 6: Final answer
    x = 113,401.49

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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.