Finding the Third Proportional to 144 and 391.50
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Solution
The third proportional to 144 and 391.50 is: 1,064.39
Step by Step Solution
- Step 1: Write the proportion equation
144 : 391.50 = 391.50 : x - Step 2: Convert to fraction form
144/391.50 = 391.50/x - Step 3: Cross multiply
144x = 391.50 × 391.50 - Step 4: Simplify right side
144x = 153,272.25 - Step 5: Solve for x
x = 153,272.25/144 - Step 6: Final answer
x = 1,064.39
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These problems maintain the same ratio (2.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.