Finding the Third Proportional to 129,177.28 and 273,990.09
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Solution
The third proportional to 129,177.28 and 273,990.09 is: 581,143.76
Step by Step Solution
- Step 1: Write the proportion equation
129,177.28 : 273,990.09 = 273,990.09 : x - Step 2: Convert to fraction form
129,177.28/273,990.09 = 273,990.09/x - Step 3: Cross multiply
129,177.28x = 273,990.09 × 273,990.09 - Step 4: Simplify right side
129,177.28x = 75,070,571,473.13 - Step 5: Solve for x
x = 75,070,571,473.13/129,177.28 - Step 6: Final answer
x = 581,143.76
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Why These Related Problems?
These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.