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Finding the Fourth Proportional to 226.98, 312.96 and 187.50

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Solution

The fourth proportional to 226.98, 312.96 and 187.50 is: 258.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    226.98 : 312.96 = 187.50 : x
  2. Step 2: Convert to fraction form
    226.98/312.96 = 187.50/x
  3. Step 3: Cross multiply
    226.98x = 312.96 × 187.50
  4. Step 4: Simplify right side
    226.98x = 58,680.00
  5. Step 5: Solve for x
    x = 58,680.00/226.98
  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.