Finding the Third Proportional to 308 and 770
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Solution
The third proportional to 308 and 770 is: 1,925
Step by Step Solution
- Step 1: Write the proportion equation
308 : 770 = 770 : x - Step 2: Convert to fraction form
308/770 = 770/x - Step 3: Cross multiply
308x = 770 × 770 - Step 4: Simplify right side
308x = 592,900 - Step 5: Solve for x
x = 592,900/308 - Step 6: Final answer
x = 1,925
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These problems maintain the same ratio (2.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.