Finding the Third Proportional to 62 and 65.50
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Solution
The third proportional to 62 and 65.50 is: 69.20
Step by Step Solution
- Step 1: Write the proportion equation
62 : 65.50 = 65.50 : x - Step 2: Convert to fraction form
62/65.50 = 65.50/x - Step 3: Cross multiply
62x = 65.50 × 65.50 - Step 4: Simplify right side
62x = 4,290.25 - Step 5: Solve for x
x = 4,290.25/62 - Step 6: Final answer
x = 69.20
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Why These Related Problems?
These problems maintain the same ratio (1.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.