Finding the Third Proportional to 61,678.88 and 128,205.75
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Solution
The third proportional to 61,678.88 and 128,205.75 is: 266,488.56
Step by Step Solution
- Step 1: Write the proportion equation
61,678.88 : 128,205.75 = 128,205.75 : x - Step 2: Convert to fraction form
61,678.88/128,205.75 = 128,205.75/x - Step 3: Cross multiply
61,678.88x = 128,205.75 × 128,205.75 - Step 4: Simplify right side
61,678.88x = 16,436,714,333.06 - Step 5: Solve for x
x = 16,436,714,333.06/61,678.88 - Step 6: Final answer
x = 266,488.56
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Why These Related Problems?
These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.