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Finding the Fourth Proportional to 221,003, 331,602.87 and 115,797.38

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Solution

The fourth proportional to 221,003, 331,602.87 and 115,797.38 is: 173,747.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,003 : 331,602.87 = 115,797.38 : x
  2. Step 2: Convert to fraction form
    221,003/331,602.87 = 115,797.38/x
  3. Step 3: Cross multiply
    221,003x = 331,602.87 × 115,797.38
  4. Step 4: Simplify right side
    221,003x = 38,398,743,546.48
  5. Step 5: Solve for x
    x = 38,398,743,546.48/221,003
  6. Step 6: Final answer
    x = 173,747.61

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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.