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Finding the Fourth Proportional to 292.06, 403.07 and 161.07

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Solution

The fourth proportional to 292.06, 403.07 and 161.07 is: 222.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.06 : 403.07 = 161.07 : x
  2. Step 2: Convert to fraction form
    292.06/403.07 = 161.07/x
  3. Step 3: Cross multiply
    292.06x = 403.07 × 161.07
  4. Step 4: Simplify right side
    292.06x = 64,922.48
  5. Step 5: Solve for x
    x = 64,922.48/292.06
  6. Step 6: Final answer
    x = 222.29

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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.