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Finding the Fourth Proportional to 225,620.56, 338,357.01 and 105,640.37

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Solution

The fourth proportional to 225,620.56, 338,357.01 and 105,640.37 is: 158,425.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,620.56 : 338,357.01 = 105,640.37 : x
  2. Step 2: Convert to fraction form
    225,620.56/338,357.01 = 105,640.37/x
  3. Step 3: Cross multiply
    225,620.56x = 338,357.01 × 105,640.37
  4. Step 4: Simplify right side
    225,620.56x = 35,744,159,701.70
  5. Step 5: Solve for x
    x = 35,744,159,701.70/225,620.56
  6. Step 6: Final answer
    x = 158,425.99

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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.