Finding the Third Proportional to 149 and 249.50
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Solution
The third proportional to 149 and 249.50 is: 417.79
Step by Step Solution
- Step 1: Write the proportion equation
149 : 249.50 = 249.50 : x - Step 2: Convert to fraction form
149/249.50 = 249.50/x - Step 3: Cross multiply
149x = 249.50 × 249.50 - Step 4: Simplify right side
149x = 62,250.25 - Step 5: Solve for x
x = 62,250.25/149 - Step 6: Final answer
x = 417.79
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Why These Related Problems?
These problems maintain the same ratio (1.67) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.