Finding the Third Proportional to 140.91 and 201.09
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Solution
The third proportional to 140.91 and 201.09 is: 286.99
Step by Step Solution
- Step 1: Write the proportion equation
140.91 : 201.09 = 201.09 : x - Step 2: Convert to fraction form
140.91/201.09 = 201.09/x - Step 3: Cross multiply
140.91x = 201.09 × 201.09 - Step 4: Simplify right side
140.91x = 40,438.70 - Step 5: Solve for x
x = 40,438.70/140.91 - Step 6: Final answer
x = 286.99
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Why These Related Problems?
These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.