Finding the Third Proportional to 35.81 and 78.94
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Solution
The third proportional to 35.81 and 78.94 is: 173.99
Step by Step Solution
- Step 1: Write the proportion equation
35.81 : 78.94 = 78.94 : x - Step 2: Convert to fraction form
35.81/78.94 = 78.94/x - Step 3: Cross multiply
35.81x = 78.94 × 78.94 - Step 4: Simplify right side
35.81x = 6,231.13 - Step 5: Solve for x
x = 6,231.13/35.81 - Step 6: Final answer
x = 173.99
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Why These Related Problems?
These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.