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Finding the Fourth Proportional to 303.13, 451.65 and 300.09

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Solution

The fourth proportional to 303.13, 451.65 and 300.09 is: 447.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    303.13 : 451.65 = 300.09 : x
  2. Step 2: Convert to fraction form
    303.13/451.65 = 300.09/x
  3. Step 3: Cross multiply
    303.13x = 451.65 × 300.09
  4. Step 4: Simplify right side
    303.13x = 135,535.65
  5. Step 5: Solve for x
    x = 135,535.65/303.13
  6. Step 6: Final answer
    x = 447.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.