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Finding the Fourth Proportional to 218,964.44, 328,446.72 and 100,735.28

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Solution

The fourth proportional to 218,964.44, 328,446.72 and 100,735.28 is: 151,102.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,964.44 : 328,446.72 = 100,735.28 : x
  2. Step 2: Convert to fraction form
    218,964.44/328,446.72 = 100,735.28/x
  3. Step 3: Cross multiply
    218,964.44x = 328,446.72 × 100,735.28
  4. Step 4: Simplify right side
    218,964.44x = 33,086,172,304.28
  5. Step 5: Solve for x
    x = 33,086,172,304.28/218,964.44
  6. Step 6: Final answer
    x = 151,102.95

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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.