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Finding the Fourth Proportional to 250.28, 344.61 and 213.36

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Solution

The fourth proportional to 250.28, 344.61 and 213.36 is: 293.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    250.28 : 344.61 = 213.36 : x
  2. Step 2: Convert to fraction form
    250.28/344.61 = 213.36/x
  3. Step 3: Cross multiply
    250.28x = 344.61 × 213.36
  4. Step 4: Simplify right side
    250.28x = 73,525.99
  5. Step 5: Solve for x
    x = 73,525.99/250.28
  6. Step 6: Final answer
    x = 293.77

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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.