Finding the Third Proportional to 393 and 650
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Solution
The third proportional to 393 and 650 is: 1,075.06
Step by Step Solution
- Step 1: Write the proportion equation
393 : 650 = 650 : x - Step 2: Convert to fraction form
393/650 = 650/x - Step 3: Cross multiply
393x = 650 × 650 - Step 4: Simplify right side
393x = 422,500 - Step 5: Solve for x
x = 422,500/393 - Step 6: Final answer
x = 1,075.06
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Why These Related Problems?
These problems maintain the same ratio (1.65) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.