Finding the Third Proportional to 128,739.38 and 269,249.06
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Solution
The third proportional to 128,739.38 and 269,249.06 is: 563,114.88
Step by Step Solution
- Step 1: Write the proportion equation
128,739.38 : 269,249.06 = 269,249.06 : x - Step 2: Convert to fraction form
128,739.38/269,249.06 = 269,249.06/x - Step 3: Cross multiply
128,739.38x = 269,249.06 × 269,249.06 - Step 4: Simplify right side
128,739.38x = 72,495,057,657.13 - Step 5: Solve for x
x = 72,495,057,657.13/128,739.38 - Step 6: Final answer
x = 563,114.88
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These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.