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Finding the Fourth Proportional to 154,467.20, 231,700.80 and 49,296.80

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Solution

The fourth proportional to 154,467.20, 231,700.80 and 49,296.80 is: 73,945.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,467.20 : 231,700.80 = 49,296.80 : x
  2. Step 2: Convert to fraction form
    154,467.20/231,700.80 = 49,296.80/x
  3. Step 3: Cross multiply
    154,467.20x = 231,700.80 × 49,296.80
  4. Step 4: Simplify right side
    154,467.20x = 11,422,107,997.44
  5. Step 5: Solve for x
    x = 11,422,107,997.44/154,467.20
  6. Step 6: Final answer
    x = 73,945.20

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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.