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Finding the Fourth Proportional to 230,347.09, 345,621.03 and 80,694.73

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Solution

The fourth proportional to 230,347.09, 345,621.03 and 80,694.73 is: 121,077.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,347.09 : 345,621.03 = 80,694.73 : x
  2. Step 2: Convert to fraction form
    230,347.09/345,621.03 = 80,694.73/x
  3. Step 3: Cross multiply
    230,347.09x = 345,621.03 × 80,694.73
  4. Step 4: Simplify right side
    230,347.09x = 27,889,795,698.17
  5. Step 5: Solve for x
    x = 27,889,795,698.17/230,347.09
  6. Step 6: Final answer
    x = 121,077.27

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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.