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Finding the Fourth Proportional to 292.94, 404.27 and 161.94

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Solution

The fourth proportional to 292.94, 404.27 and 161.94 is: 223.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.94 : 404.27 = 161.94 : x
  2. Step 2: Convert to fraction form
    292.94/404.27 = 161.94/x
  3. Step 3: Cross multiply
    292.94x = 404.27 × 161.94
  4. Step 4: Simplify right side
    292.94x = 65,467.48
  5. Step 5: Solve for x
    x = 65,467.48/292.94
  6. Step 6: Final answer
    x = 223.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.