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Finding the Fourth Proportional to 339,163, 508,754.22 and 89,845

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Solution

The fourth proportional to 339,163, 508,754.22 and 89,845 is: 134,770.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,163 : 508,754.22 = 89,845 : x
  2. Step 2: Convert to fraction form
    339,163/508,754.22 = 89,845/x
  3. Step 3: Cross multiply
    339,163x = 508,754.22 × 89,845
  4. Step 4: Simplify right side
    339,163x = 45,709,022,895.90
  5. Step 5: Solve for x
    x = 45,709,022,895.90/339,163
  6. Step 6: Final answer
    x = 134,770.07

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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.