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Finding the Fourth Proportional to 323,786.70, 484,808.49 and 211,187.79

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Solution

The fourth proportional to 323,786.70, 484,808.49 and 211,187.79 is: 316,213.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,786.70 : 484,808.49 = 211,187.79 : x
  2. Step 2: Convert to fraction form
    323,786.70/484,808.49 = 211,187.79/x
  3. Step 3: Cross multiply
    323,786.70x = 484,808.49 × 211,187.79
  4. Step 4: Simplify right side
    323,786.70x = 102,385,633,576.34
  5. Step 5: Solve for x
    x = 102,385,633,576.34/323,786.70
  6. Step 6: Final answer
    x = 316,213.22

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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.