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Finding the Fourth Proportional to 230,018.52, 345,024.90 and 80,258.52

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Solution

The fourth proportional to 230,018.52, 345,024.90 and 80,258.52 is: 120,386.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,018.52 : 345,024.90 = 80,258.52 : x
  2. Step 2: Convert to fraction form
    230,018.52/345,024.90 = 80,258.52/x
  3. Step 3: Cross multiply
    230,018.52x = 345,024.90 × 80,258.52
  4. Step 4: Simplify right side
    230,018.52x = 27,691,187,837.15
  5. Step 5: Solve for x
    x = 27,691,187,837.15/230,018.52
  6. Step 6: Final answer
    x = 120,386.78

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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.