Finding the Third Proportional to 547 and 661
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Solution
The third proportional to 547 and 661 is: 798.76
Step by Step Solution
- Step 1: Write the proportion equation
547 : 661 = 661 : x - Step 2: Convert to fraction form
547/661 = 661/x - Step 3: Cross multiply
547x = 661 × 661 - Step 4: Simplify right side
547x = 436,921 - Step 5: Solve for x
x = 436,921/547 - Step 6: Final answer
x = 798.76
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Why These Related Problems?
These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.