Finding the Third Proportional to 220,290 and 343,419
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Solution
The third proportional to 220,290 and 343,419 is: 535,369.78
Step by Step Solution
- Step 1: Write the proportion equation
220,290 : 343,419 = 343,419 : x - Step 2: Convert to fraction form
220,290/343,419 = 343,419/x - Step 3: Cross multiply
220,290x = 343,419 × 343,419 - Step 4: Simplify right side
220,290x = 117,936,609,561 - Step 5: Solve for x
x = 117,936,609,561/220,290 - Step 6: Final answer
x = 535,369.78
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These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.