Finding the Third Proportional to 505 and 868
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Solution
The third proportional to 505 and 868 is: 1,491.93
Step by Step Solution
- Step 1: Write the proportion equation
505 : 868 = 868 : x - Step 2: Convert to fraction form
505/868 = 868/x - Step 3: Cross multiply
505x = 868 × 868 - Step 4: Simplify right side
505x = 753,424 - Step 5: Solve for x
x = 753,424/505 - Step 6: Final answer
x = 1,491.93
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Why These Related Problems?
These problems maintain the same ratio (1.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.