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Finding the Fourth Proportional to 322.13, 483.18 and 185.09

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Solution

The fourth proportional to 322.13, 483.18 and 185.09 is: 277.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    322.13 : 483.18 = 185.09 : x
  2. Step 2: Convert to fraction form
    322.13/483.18 = 185.09/x
  3. Step 3: Cross multiply
    322.13x = 483.18 × 185.09
  4. Step 4: Simplify right side
    322.13x = 89,432.44
  5. Step 5: Solve for x
    x = 89,432.44/322.13
  6. Step 6: Final answer
    x = 277.63

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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.