Finding the Third Proportional to 830 and 1,025
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Solution
The third proportional to 830 and 1,025 is: 1,265.81
Step by Step Solution
- Step 1: Write the proportion equation
830 : 1,025 = 1,025 : x - Step 2: Convert to fraction form
830/1,025 = 1,025/x - Step 3: Cross multiply
830x = 1,025 × 1,025 - Step 4: Simplify right side
830x = 1,050,625 - Step 5: Solve for x
x = 1,050,625/830 - Step 6: Final answer
x = 1,265.81
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Why These Related Problems?
These problems maintain the same ratio (1.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.