Finding the Third Proportional to 331 and 830
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Solution
The third proportional to 331 and 830 is: 2,081.27
Step by Step Solution
- Step 1: Write the proportion equation
331 : 830 = 830 : x - Step 2: Convert to fraction form
331/830 = 830/x - Step 3: Cross multiply
331x = 830 × 830 - Step 4: Simplify right side
331x = 688,900 - Step 5: Solve for x
x = 688,900/331 - Step 6: Final answer
x = 2,081.27
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These problems maintain the same ratio (2.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.