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Finding the Fourth Proportional to 149.43, 222.93 and 141.33

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Solution

The fourth proportional to 149.43, 222.93 and 141.33 is: 210.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    149.43 : 222.93 = 141.33 : x
  2. Step 2: Convert to fraction form
    149.43/222.93 = 141.33/x
  3. Step 3: Cross multiply
    149.43x = 222.93 × 141.33
  4. Step 4: Simplify right side
    149.43x = 31,506.90
  5. Step 5: Solve for x
    x = 31,506.90/149.43
  6. Step 6: Final answer
    x = 210.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.