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Finding the Fourth Proportional to 323,908.36, 484,866 and 211,346.20

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Solution

The fourth proportional to 323,908.36, 484,866 and 211,346.20 is: 316,369.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,908.36 : 484,866 = 211,346.20 : x
  2. Step 2: Convert to fraction form
    323,908.36/484,866 = 211,346.20/x
  3. Step 3: Cross multiply
    323,908.36x = 484,866 × 211,346.20
  4. Step 4: Simplify right side
    323,908.36x = 102,474,586,609.20
  5. Step 5: Solve for x
    x = 102,474,586,609.20/323,908.36
  6. Step 6: Final answer
    x = 316,369.07

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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.