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Finding the Fourth Proportional to 215.37, 296.89 and 185.73

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Solution

The fourth proportional to 215.37, 296.89 and 185.73 is: 256.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    215.37 : 296.89 = 185.73 : x
  2. Step 2: Convert to fraction form
    215.37/296.89 = 185.73/x
  3. Step 3: Cross multiply
    215.37x = 296.89 × 185.73
  4. Step 4: Simplify right side
    215.37x = 55,141.38
  5. Step 5: Solve for x
    x = 55,141.38/215.37
  6. Step 6: Final answer
    x = 256.03

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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.