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Finding the Fourth Proportional to 212.73, 293.57 and 124.22

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Solution

The fourth proportional to 212.73, 293.57 and 124.22 is: 171.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    212.73 : 293.57 = 124.22 : x
  2. Step 2: Convert to fraction form
    212.73/293.57 = 124.22/x
  3. Step 3: Cross multiply
    212.73x = 293.57 × 124.22
  4. Step 4: Simplify right side
    212.73x = 36,465.18
  5. Step 5: Solve for x
    x = 36,465.18/212.73
  6. Step 6: Final answer
    x = 171.42

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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.