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Finding the Fourth Proportional to 300,015.56, 450,147.60 and 131,448.80

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Solution

The fourth proportional to 300,015.56, 450,147.60 and 131,448.80 is: 197,227.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,015.56 : 450,147.60 = 131,448.80 : x
  2. Step 2: Convert to fraction form
    300,015.56/450,147.60 = 131,448.80/x
  3. Step 3: Cross multiply
    300,015.56x = 450,147.60 × 131,448.80
  4. Step 4: Simplify right side
    300,015.56x = 59,171,361,842.88
  5. Step 5: Solve for x
    x = 59,171,361,842.88/300,015.56
  6. Step 6: Final answer
    x = 197,227.64

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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.