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Finding the Fourth Proportional to 300,846.21, 414,928.62 and 255,673.73

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Solution

The fourth proportional to 300,846.21, 414,928.62 and 255,673.73 is: 352,626.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,846.21 : 414,928.62 = 255,673.73 : x
  2. Step 2: Convert to fraction form
    300,846.21/414,928.62 = 255,673.73/x
  3. Step 3: Cross multiply
    300,846.21x = 414,928.62 × 255,673.73
  4. Step 4: Simplify right side
    300,846.21x = 106,086,345,884.51
  5. Step 5: Solve for x
    x = 106,086,345,884.51/300,846.21
  6. Step 6: Final answer
    x = 352,626.50

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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.