Finding the Third Proportional to 172 and 240
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Solution
The third proportional to 172 and 240 is: 334.88
Step by Step Solution
- Step 1: Write the proportion equation
172 : 240 = 240 : x - Step 2: Convert to fraction form
172/240 = 240/x - Step 3: Cross multiply
172x = 240 × 240 - Step 4: Simplify right side
172x = 57,600 - Step 5: Solve for x
x = 57,600/172 - Step 6: Final answer
x = 334.88
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.