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Finding the Fourth Proportional to 250,170.35, 345,234.56 and 135,448.43

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Solution

The fourth proportional to 250,170.35, 345,234.56 and 135,448.43 is: 186,918.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,170.35 : 345,234.56 = 135,448.43 : x
  2. Step 2: Convert to fraction form
    250,170.35/345,234.56 = 135,448.43/x
  3. Step 3: Cross multiply
    250,170.35x = 345,234.56 × 135,448.43
  4. Step 4: Simplify right side
    250,170.35x = 46,761,476,730.33
  5. Step 5: Solve for x
    x = 46,761,476,730.33/250,170.35
  6. Step 6: Final answer
    x = 186,918.54

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1.5x scale

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.