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Finding the Fourth Proportional to 301.25, 415.55 and 227.44

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Solution

The fourth proportional to 301.25, 415.55 and 227.44 is: 313.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.25 : 415.55 = 227.44 : x
  2. Step 2: Convert to fraction form
    301.25/415.55 = 227.44/x
  3. Step 3: Cross multiply
    301.25x = 415.55 × 227.44
  4. Step 4: Simplify right side
    301.25x = 94,509.48
  5. Step 5: Solve for x
    x = 94,509.48/301.25
  6. Step 6: Final answer
    x = 313.73

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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.