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Finding the Fourth Proportional to 300,633.12, 451,253.58 and 266,661.72

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Solution

The fourth proportional to 300,633.12, 451,253.58 and 266,661.72 is: 400,262.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,633.12 : 451,253.58 = 266,661.72 : x
  2. Step 2: Convert to fraction form
    300,633.12/451,253.58 = 266,661.72/x
  3. Step 3: Cross multiply
    300,633.12x = 451,253.58 × 266,661.72
  4. Step 4: Simplify right side
    300,633.12x = 120,332,055,798.96
  5. Step 5: Solve for x
    x = 120,332,055,798.96/300,633.12
  6. Step 6: Final answer
    x = 400,262.14

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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.