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Finding the Fourth Proportional to 349.23, 482.04 and 209.36

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Solution

The fourth proportional to 349.23, 482.04 and 209.36 is: 288.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.23 : 482.04 = 209.36 : x
  2. Step 2: Convert to fraction form
    349.23/482.04 = 209.36/x
  3. Step 3: Cross multiply
    349.23x = 482.04 × 209.36
  4. Step 4: Simplify right side
    349.23x = 100,917.48
  5. Step 5: Solve for x
    x = 100,917.48/349.23
  6. Step 6: Final answer
    x = 288.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.