Finding the Third Proportional to 321 and 715.50
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Solution
The third proportional to 321 and 715.50 is: 1,594.83
Step by Step Solution
- Step 1: Write the proportion equation
321 : 715.50 = 715.50 : x - Step 2: Convert to fraction form
321/715.50 = 715.50/x - Step 3: Cross multiply
321x = 715.50 × 715.50 - Step 4: Simplify right side
321x = 511,940.25 - Step 5: Solve for x
x = 511,940.25/321 - Step 6: Final answer
x = 1,594.83
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Why These Related Problems?
These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.