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Finding the Fourth Proportional to 250,344.76, 345,473.56 and 135,620.80

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Solution

The fourth proportional to 250,344.76, 345,473.56 and 135,620.80 is: 187,155.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,344.76 : 345,473.56 = 135,620.80 : x
  2. Step 2: Convert to fraction form
    250,344.76/345,473.56 = 135,620.80/x
  3. Step 3: Cross multiply
    250,344.76x = 345,473.56 × 135,620.80
  4. Step 4: Simplify right side
    250,344.76x = 46,853,400,586.05
  5. Step 5: Solve for x
    x = 46,853,400,586.05/250,344.76
  6. Step 6: Final answer
    x = 187,155.51

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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.