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Finding the Fourth Proportional to 203,279.97, 304,968.42 and 70,161.39

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Solution

The fourth proportional to 203,279.97, 304,968.42 and 70,161.39 is: 105,258.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,279.97 : 304,968.42 = 70,161.39 : x
  2. Step 2: Convert to fraction form
    203,279.97/304,968.42 = 70,161.39/x
  3. Step 3: Cross multiply
    203,279.97x = 304,968.42 × 70,161.39
  4. Step 4: Simplify right side
    203,279.97x = 21,397,008,253.30
  5. Step 5: Solve for x
    x = 21,397,008,253.30/203,279.97
  6. Step 6: Final answer
    x = 105,258.81

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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.