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Finding the Fourth Proportional to 230,388.14, 345,737.90 and 80,629.74

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Solution

The fourth proportional to 230,388.14, 345,737.90 and 80,629.74 is: 120,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,388.14 : 345,737.90 = 80,629.74 : x
  2. Step 2: Convert to fraction form
    230,388.14/345,737.90 = 80,629.74/x
  3. Step 3: Cross multiply
    230,388.14x = 345,737.90 × 80,629.74
  4. Step 4: Simplify right side
    230,388.14x = 27,876,757,186.72
  5. Step 5: Solve for x
    x = 27,876,757,186.72/230,388.14
  6. Step 6: Final answer
    x = 120,999.10

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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.