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Finding the Fourth Proportional to 212.24, 293.64 and 173.36

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Solution

The fourth proportional to 212.24, 293.64 and 173.36 is: 239.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    212.24 : 293.64 = 173.36 : x
  2. Step 2: Convert to fraction form
    212.24/293.64 = 173.36/x
  3. Step 3: Cross multiply
    212.24x = 293.64 × 173.36
  4. Step 4: Simplify right side
    212.24x = 50,905.43
  5. Step 5: Solve for x
    x = 50,905.43/212.24
  6. Step 6: Final answer
    x = 239.85

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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.