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Finding the Fourth Proportional to 215.49, 296.87 and 173.93

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Solution

The fourth proportional to 215.49, 296.87 and 173.93 is: 239.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215.49 : 296.87 = 173.93 : x
  2. Step 2: Convert to fraction form
    215.49/296.87 = 173.93/x
  3. Step 3: Cross multiply
    215.49x = 296.87 × 173.93
  4. Step 4: Simplify right side
    215.49x = 51,633.73
  5. Step 5: Solve for x
    x = 51,633.73/215.49
  6. Step 6: Final answer
    x = 239.61

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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.