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Finding the Fourth Proportional to 300,397.87, 414,540.84 and 171,333.43

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Solution

The fourth proportional to 300,397.87, 414,540.84 and 171,333.43 is: 236,435.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,397.87 : 414,540.84 = 171,333.43 : x
  2. Step 2: Convert to fraction form
    300,397.87/414,540.84 = 171,333.43/x
  3. Step 3: Cross multiply
    300,397.87x = 414,540.84 × 171,333.43
  4. Step 4: Simplify right side
    300,397.87x = 71,024,702,634.68
  5. Step 5: Solve for x
    x = 71,024,702,634.68/300,397.87
  6. Step 6: Final answer
    x = 236,435.44

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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.