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Finding the Fourth Proportional to 300,623.54, 414,757.50 and 171,469.20

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Solution

The fourth proportional to 300,623.54, 414,757.50 and 171,469.20 is: 236,568.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,623.54 : 414,757.50 = 171,469.20 : x
  2. Step 2: Convert to fraction form
    300,623.54/414,757.50 = 171,469.20/x
  3. Step 3: Cross multiply
    300,623.54x = 414,757.50 × 171,469.20
  4. Step 4: Simplify right side
    300,623.54x = 71,118,137,631.33
  5. Step 5: Solve for x
    x = 71,118,137,631.33/300,623.54
  6. Step 6: Final answer
    x = 236,568.76

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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.