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Finding the Fourth Proportional to 662.94, 994.32 and 230.10

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Solution

The fourth proportional to 662.94, 994.32 and 230.10 is: 345.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.94 : 994.32 = 230.10 : x
  2. Step 2: Convert to fraction form
    662.94/994.32 = 230.10/x
  3. Step 3: Cross multiply
    662.94x = 994.32 × 230.10
  4. Step 4: Simplify right side
    662.94x = 228,793.03
  5. Step 5: Solve for x
    x = 228,793.03/662.94
  6. Step 6: Final answer
    x = 345.12

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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.