Finding the Third Proportional to 745 and 812.50
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Solution
The third proportional to 745 and 812.50 is: 886.12
Step by Step Solution
- Step 1: Write the proportion equation
745 : 812.50 = 812.50 : x - Step 2: Convert to fraction form
745/812.50 = 812.50/x - Step 3: Cross multiply
745x = 812.50 × 812.50 - Step 4: Simplify right side
745x = 660,156.25 - Step 5: Solve for x
x = 660,156.25/745 - Step 6: Final answer
x = 886.12
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Why These Related Problems?
These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.