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Finding the Fourth Proportional to 215.67, 323.22 and 183.06

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Solution

The fourth proportional to 215.67, 323.22 and 183.06 is: 274.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    215.67 : 323.22 = 183.06 : x
  2. Step 2: Convert to fraction form
    215.67/323.22 = 183.06/x
  3. Step 3: Cross multiply
    215.67x = 323.22 × 183.06
  4. Step 4: Simplify right side
    215.67x = 59,168.65
  5. Step 5: Solve for x
    x = 59,168.65/215.67
  6. Step 6: Final answer
    x = 274.35

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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.