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Finding the Fourth Proportional to 226.94, 312.96 and 187.46

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Solution

The fourth proportional to 226.94, 312.96 and 187.46 is: 258.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.94 : 312.96 = 187.46 : x
  2. Step 2: Convert to fraction form
    226.94/312.96 = 187.46/x
  3. Step 3: Cross multiply
    226.94x = 312.96 × 187.46
  4. Step 4: Simplify right side
    226.94x = 58,667.48
  5. Step 5: Solve for x
    x = 58,667.48/226.94
  6. Step 6: Final answer
    x = 258.52

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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.