Finding the Third Proportional to 289.50 and 605
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Solution
The third proportional to 289.50 and 605 is: 1,264.34
Step by Step Solution
- Step 1: Write the proportion equation
289.50 : 605 = 605 : x - Step 2: Convert to fraction form
289.50/605 = 605/x - Step 3: Cross multiply
289.50x = 605 × 605 - Step 4: Simplify right side
289.50x = 366,025 - Step 5: Solve for x
x = 366,025/289.50 - Step 6: Final answer
x = 1,264.34
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Why These Related Problems?
These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.