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Finding the Fourth Proportional to 619,137.48, 929,120.46 and 225,153.48

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Solution

The fourth proportional to 619,137.48, 929,120.46 and 225,153.48 is: 337,880.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,137.48 : 929,120.46 = 225,153.48 : x
  2. Step 2: Convert to fraction form
    619,137.48/929,120.46 = 225,153.48/x
  3. Step 3: Cross multiply
    619,137.48x = 929,120.46 × 225,153.48
  4. Step 4: Simplify right side
    619,137.48x = 209,194,704,908.20
  5. Step 5: Solve for x
    x = 209,194,704,908.20/619,137.48
  6. Step 6: Final answer
    x = 337,880.86

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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.