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Finding the Fourth Proportional to 662.27, 992.65 and 271.77

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Solution

The fourth proportional to 662.27, 992.65 and 271.77 is: 407.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.27 : 992.65 = 271.77 : x
  2. Step 2: Convert to fraction form
    662.27/992.65 = 271.77/x
  3. Step 3: Cross multiply
    662.27x = 992.65 × 271.77
  4. Step 4: Simplify right side
    662.27x = 269,774.18
  5. Step 5: Solve for x
    x = 269,774.18/662.27
  6. Step 6: Final answer
    x = 407.35

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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.