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Finding the Fourth Proportional to 300.37, 415.07 and 226.55

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Solution

The fourth proportional to 300.37, 415.07 and 226.55 is: 313.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    300.37 : 415.07 = 226.55 : x
  2. Step 2: Convert to fraction form
    300.37/415.07 = 226.55/x
  3. Step 3: Cross multiply
    300.37x = 415.07 × 226.55
  4. Step 4: Simplify right side
    300.37x = 94,032.98
  5. Step 5: Solve for x
    x = 94,032.98/300.37
  6. Step 6: Final answer
    x = 313.06

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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.