Finding the Third Proportional to 65.50 and 145
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Solution
The third proportional to 65.50 and 145 is: 320.99
Step by Step Solution
- Step 1: Write the proportion equation
65.50 : 145 = 145 : x - Step 2: Convert to fraction form
65.50/145 = 145/x - Step 3: Cross multiply
65.50x = 145 × 145 - Step 4: Simplify right side
65.50x = 21,025 - Step 5: Solve for x
x = 21,025/65.50 - Step 6: Final answer
x = 320.99
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Why These Related Problems?
These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.