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Finding the Fourth Proportional to 150,305.40, 225,020.70 and 91,110.60

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Solution

The fourth proportional to 150,305.40, 225,020.70 and 91,110.60 is: 136,400.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,305.40 : 225,020.70 = 91,110.60 : x
  2. Step 2: Convert to fraction form
    150,305.40/225,020.70 = 91,110.60/x
  3. Step 3: Cross multiply
    150,305.40x = 225,020.70 × 91,110.60
  4. Step 4: Simplify right side
    150,305.40x = 20,501,770,989.42
  5. Step 5: Solve for x
    x = 20,501,770,989.42/150,305.40
  6. Step 6: Final answer
    x = 136,400.76

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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.