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Finding the Fourth Proportional to 300,305.07, 450,583.16 and 131,738.40

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Solution

The fourth proportional to 300,305.07, 450,583.16 and 131,738.40 is: 197,662.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,305.07 : 450,583.16 = 131,738.40 : x
  2. Step 2: Convert to fraction form
    300,305.07/450,583.16 = 131,738.40/x
  3. Step 3: Cross multiply
    300,305.07x = 450,583.16 × 131,738.40
  4. Step 4: Simplify right side
    300,305.07x = 59,359,103,906.65
  5. Step 5: Solve for x
    x = 59,359,103,906.65/300,305.07
  6. Step 6: Final answer
    x = 197,662.68

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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.