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Finding the Fourth Proportional to 234,935.97, 324,064.15 and 139,375

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Solution

The fourth proportional to 234,935.97, 324,064.15 and 139,375 is: 192,250.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,935.97 : 324,064.15 = 139,375 : x
  2. Step 2: Convert to fraction form
    234,935.97/324,064.15 = 139,375/x
  3. Step 3: Cross multiply
    234,935.97x = 324,064.15 × 139,375
  4. Step 4: Simplify right side
    234,935.97x = 45,166,440,906.25
  5. Step 5: Solve for x
    x = 45,166,440,906.25/234,935.97
  6. Step 6: Final answer
    x = 192,250.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.