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Finding the Fourth Proportional to 160.91, 222.19 and 131.41

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Solution

The fourth proportional to 160.91, 222.19 and 131.41 is: 181.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    160.91 : 222.19 = 131.41 : x
  2. Step 2: Convert to fraction form
    160.91/222.19 = 131.41/x
  3. Step 3: Cross multiply
    160.91x = 222.19 × 131.41
  4. Step 4: Simplify right side
    160.91x = 29,197.99
  5. Step 5: Solve for x
    x = 29,197.99/160.91
  6. Step 6: Final answer
    x = 181.46

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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.