Finding the Third Proportional to 84 and 211.50
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Solution
The third proportional to 84 and 211.50 is: 532.53
Step by Step Solution
- Step 1: Write the proportion equation
84 : 211.50 = 211.50 : x - Step 2: Convert to fraction form
84/211.50 = 211.50/x - Step 3: Cross multiply
84x = 211.50 × 211.50 - Step 4: Simplify right side
84x = 44,732.25 - Step 5: Solve for x
x = 44,732.25/84 - Step 6: Final answer
x = 532.53
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Why These Related Problems?
These problems maintain the same ratio (2.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.