Finding the Third Proportional to 33 and 72
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Solution
The third proportional to 33 and 72 is: 157.09
Step by Step Solution
- Step 1: Write the proportion equation
33 : 72 = 72 : x - Step 2: Convert to fraction form
33/72 = 72/x - Step 3: Cross multiply
33x = 72 × 72 - Step 4: Simplify right side
33x = 5,184 - Step 5: Solve for x
x = 5,184/33 - Step 6: Final answer
x = 157.09
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Why These Related Problems?
These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.