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Finding the Fourth Proportional to 662.14, 992.73 and 251.05

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Solution

The fourth proportional to 662.14, 992.73 and 251.05 is: 376.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.14 : 992.73 = 251.05 : x
  2. Step 2: Convert to fraction form
    662.14/992.73 = 251.05/x
  3. Step 3: Cross multiply
    662.14x = 992.73 × 251.05
  4. Step 4: Simplify right side
    662.14x = 249,224.48
  5. Step 5: Solve for x
    x = 249,224.48/662.14
  6. Step 6: Final answer
    x = 376.39

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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.