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Finding the Fourth Proportional to 662.15, 992.89 and 251.14

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Solution

The fourth proportional to 662.15, 992.89 and 251.14 is: 376.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.15 : 992.89 = 251.14 : x
  2. Step 2: Convert to fraction form
    662.15/992.89 = 251.14/x
  3. Step 3: Cross multiply
    662.15x = 992.89 × 251.14
  4. Step 4: Simplify right side
    662.15x = 249,354.39
  5. Step 5: Solve for x
    x = 249,354.39/662.15
  6. Step 6: Final answer
    x = 376.58

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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.