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Finding the Fourth Proportional to 300,379.73, 450,072.02 and 211,197.51

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Solution

The fourth proportional to 300,379.73, 450,072.02 and 211,197.51 is: 316,446.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,379.73 : 450,072.02 = 211,197.51 : x
  2. Step 2: Convert to fraction form
    300,379.73/450,072.02 = 211,197.51/x
  3. Step 3: Cross multiply
    300,379.73x = 450,072.02 × 211,197.51
  4. Step 4: Simplify right side
    300,379.73x = 95,054,090,472.66
  5. Step 5: Solve for x
    x = 95,054,090,472.66/300,379.73
  6. Step 6: Final answer
    x = 316,446.43

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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.