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Finding the Fourth Proportional to 297.54, 410.94 and 212.49

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Solution

The fourth proportional to 297.54, 410.94 and 212.49 is: 293.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.54 : 410.94 = 212.49 : x
  2. Step 2: Convert to fraction form
    297.54/410.94 = 212.49/x
  3. Step 3: Cross multiply
    297.54x = 410.94 × 212.49
  4. Step 4: Simplify right side
    297.54x = 87,320.64
  5. Step 5: Solve for x
    x = 87,320.64/297.54
  6. Step 6: Final answer
    x = 293.48

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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.