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Finding the Fourth Proportional to 662.65, 994.05 and 229.75

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Solution

The fourth proportional to 662.65, 994.05 and 229.75 is: 344.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.65 : 994.05 = 229.75 : x
  2. Step 2: Convert to fraction form
    662.65/994.05 = 229.75/x
  3. Step 3: Cross multiply
    662.65x = 994.05 × 229.75
  4. Step 4: Simplify right side
    662.65x = 228,382.99
  5. Step 5: Solve for x
    x = 228,382.99/662.65
  6. Step 6: Final answer
    x = 344.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.