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Finding the Fourth Proportional to 324.09, 485.96 and 180.09

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Solution

The fourth proportional to 324.09, 485.96 and 180.09 is: 270.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    324.09 : 485.96 = 180.09 : x
  2. Step 2: Convert to fraction form
    324.09/485.96 = 180.09/x
  3. Step 3: Cross multiply
    324.09x = 485.96 × 180.09
  4. Step 4: Simplify right side
    324.09x = 87,515.64
  5. Step 5: Solve for x
    x = 87,515.64/324.09
  6. Step 6: Final answer
    x = 270.03

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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.