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Finding the Fourth Proportional to 662.14, 994.22 and 627.51

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Solution

The fourth proportional to 662.14, 994.22 and 627.51 is: 942.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.14 : 994.22 = 627.51 : x
  2. Step 2: Convert to fraction form
    662.14/994.22 = 627.51/x
  3. Step 3: Cross multiply
    662.14x = 994.22 × 627.51
  4. Step 4: Simplify right side
    662.14x = 623,882.99
  5. Step 5: Solve for x
    x = 623,882.99/662.14
  6. Step 6: Final answer
    x = 942.22

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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.