Finding the Third Proportional to 74.50 and 149
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Solution
The third proportional to 74.50 and 149 is: 298
Step by Step Solution
- Step 1: Write the proportion equation
74.50 : 149 = 149 : x - Step 2: Convert to fraction form
74.50/149 = 149/x - Step 3: Cross multiply
74.50x = 149 × 149 - Step 4: Simplify right side
74.50x = 22,201 - Step 5: Solve for x
x = 22,201/74.50 - Step 6: Final answer
x = 298
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Why These Related Problems?
These problems maintain the same ratio (2) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.