Finding the Third Proportional to 386 and 912.50
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Solution
The third proportional to 386 and 912.50 is: 2,157.14
Step by Step Solution
- Step 1: Write the proportion equation
386 : 912.50 = 912.50 : x - Step 2: Convert to fraction form
386/912.50 = 912.50/x - Step 3: Cross multiply
386x = 912.50 × 912.50 - Step 4: Simplify right side
386x = 832,656.25 - Step 5: Solve for x
x = 832,656.25/386 - Step 6: Final answer
x = 2,157.14
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Why These Related Problems?
These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.