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Finding the Fourth Proportional to 212.65, 293.44 and 119.37

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Solution

The fourth proportional to 212.65, 293.44 and 119.37 is: 164.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    212.65 : 293.44 = 119.37 : x
  2. Step 2: Convert to fraction form
    212.65/293.44 = 119.37/x
  3. Step 3: Cross multiply
    212.65x = 293.44 × 119.37
  4. Step 4: Simplify right side
    212.65x = 35,027.93
  5. Step 5: Solve for x
    x = 35,027.93/212.65
  6. Step 6: Final answer
    x = 164.72

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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.