Finding the Third Proportional to 699 and 811.50
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Solution
The third proportional to 699 and 811.50 is: 942.11
Step by Step Solution
- Step 1: Write the proportion equation
699 : 811.50 = 811.50 : x - Step 2: Convert to fraction form
699/811.50 = 811.50/x - Step 3: Cross multiply
699x = 811.50 × 811.50 - Step 4: Simplify right side
699x = 658,532.25 - Step 5: Solve for x
x = 658,532.25/699 - Step 6: Final answer
x = 942.11
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Why These Related Problems?
These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.