Finding the Third Proportional to 55 and 144.50
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Solution
The third proportional to 55 and 144.50 is: 379.64
Step by Step Solution
- Step 1: Write the proportion equation
55 : 144.50 = 144.50 : x - Step 2: Convert to fraction form
55/144.50 = 144.50/x - Step 3: Cross multiply
55x = 144.50 × 144.50 - Step 4: Simplify right side
55x = 20,880.25 - Step 5: Solve for x
x = 20,880.25/55 - Step 6: Final answer
x = 379.64
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Why These Related Problems?
These problems maintain the same ratio (2.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.