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Finding the Fourth Proportional to 194.99, 291.96 and 149.22

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Solution

The fourth proportional to 194.99, 291.96 and 149.22 is: 223.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    194.99 : 291.96 = 149.22 : x
  2. Step 2: Convert to fraction form
    194.99/291.96 = 149.22/x
  3. Step 3: Cross multiply
    194.99x = 291.96 × 149.22
  4. Step 4: Simplify right side
    194.99x = 43,566.27
  5. Step 5: Solve for x
    x = 43,566.27/194.99
  6. Step 6: Final answer
    x = 223.43

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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.