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Finding the Fourth Proportional to 300,391.64, 414,544.74 and 166,255.64

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Solution

The fourth proportional to 300,391.64, 414,544.74 and 166,255.64 is: 229,435.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,391.64 : 414,544.74 = 166,255.64 : x
  2. Step 2: Convert to fraction form
    300,391.64/414,544.74 = 166,255.64/x
  3. Step 3: Cross multiply
    300,391.64x = 414,544.74 × 166,255.64
  4. Step 4: Simplify right side
    300,391.64x = 68,920,401,057.33
  5. Step 5: Solve for x
    x = 68,920,401,057.33/300,391.64
  6. Step 6: Final answer
    x = 229,435.15

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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.