Finding the Third Proportional to 198,420.75 and 299,418.75
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Solution
The third proportional to 198,420.75 and 299,418.75 is: 451,825.67
Step by Step Solution
- Step 1: Write the proportion equation
198,420.75 : 299,418.75 = 299,418.75 : x - Step 2: Convert to fraction form
198,420.75/299,418.75 = 299,418.75/x - Step 3: Cross multiply
198,420.75x = 299,418.75 × 299,418.75 - Step 4: Simplify right side
198,420.75x = 89,651,587,851.56 - Step 5: Solve for x
x = 89,651,587,851.56/198,420.75 - Step 6: Final answer
x = 451,825.67
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.