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Finding the Fourth Proportional to 264,944.67, 397,418.17 and 85,057.43

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Solution

The fourth proportional to 264,944.67, 397,418.17 and 85,057.43 is: 127,586.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,944.67 : 397,418.17 = 85,057.43 : x
  2. Step 2: Convert to fraction form
    264,944.67/397,418.17 = 85,057.43/x
  3. Step 3: Cross multiply
    264,944.67x = 397,418.17 × 85,057.43
  4. Step 4: Simplify right side
    264,944.67x = 33,803,366,374.48
  5. Step 5: Solve for x
    x = 33,803,366,374.48/264,944.67
  6. Step 6: Final answer
    x = 127,586.51

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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.