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Finding the Fourth Proportional to 323.90, 486.03 and 150.65

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Solution

The fourth proportional to 323.90, 486.03 and 150.65 is: 226.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    323.90 : 486.03 = 150.65 : x
  2. Step 2: Convert to fraction form
    323.90/486.03 = 150.65/x
  3. Step 3: Cross multiply
    323.90x = 486.03 × 150.65
  4. Step 4: Simplify right side
    323.90x = 73,221.32
  5. Step 5: Solve for x
    x = 73,221.32/323.90
  6. Step 6: Final answer
    x = 226.06

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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.