Finding the Fourth Proportional to 143.26, 197.41 and 133.99
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Solution
The fourth proportional to 143.26, 197.41 and 133.99 is: 184.64
Step by Step Solution
- Step 1: Write the proportion equation
143.26 : 197.41 = 133.99 : x - Step 2: Convert to fraction form
143.26/197.41 = 133.99/x - Step 3: Cross multiply
143.26x = 197.41 × 133.99 - Step 4: Simplify right side
143.26x = 26,450.97 - Step 5: Solve for x
x = 26,450.97/143.26 - Step 6: Final answer
x = 184.64
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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.