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Finding the Fourth Proportional to 150,378.93, 225,546.12 and 91,198.71

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Solution

The fourth proportional to 150,378.93, 225,546.12 and 91,198.71 is: 136,784.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,378.93 : 225,546.12 = 91,198.71 : x
  2. Step 2: Convert to fraction form
    150,378.93/225,546.12 = 91,198.71/x
  3. Step 3: Cross multiply
    150,378.93x = 225,546.12 × 91,198.71
  4. Step 4: Simplify right side
    150,378.93x = 20,569,515,189.51
  5. Step 5: Solve for x
    x = 20,569,515,189.51/150,378.93
  6. Step 6: Final answer
    x = 136,784.56

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1.5x scale

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.