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Finding the Fourth Proportional to 220,793.79, 304,694.57 and 123,984.19

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Solution

The fourth proportional to 220,793.79, 304,694.57 and 123,984.19 is: 171,097.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,793.79 : 304,694.57 = 123,984.19 : x
  2. Step 2: Convert to fraction form
    220,793.79/304,694.57 = 123,984.19/x
  3. Step 3: Cross multiply
    220,793.79x = 304,694.57 × 123,984.19
  4. Step 4: Simplify right side
    220,793.79x = 37,777,310,149.68
  5. Step 5: Solve for x
    x = 37,777,310,149.68/220,793.79
  6. Step 6: Final answer
    x = 171,097.70

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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.