Finding the Third Proportional to 77,991.19 and 159,678.84
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Solution
The third proportional to 77,991.19 and 159,678.84 is: 326,925.82
Step by Step Solution
- Step 1: Write the proportion equation
77,991.19 : 159,678.84 = 159,678.84 : x - Step 2: Convert to fraction form
77,991.19/159,678.84 = 159,678.84/x - Step 3: Cross multiply
77,991.19x = 159,678.84 × 159,678.84 - Step 4: Simplify right side
77,991.19x = 25,497,333,141.34 - Step 5: Solve for x
x = 25,497,333,141.34/77,991.19 - Step 6: Final answer
x = 326,925.82
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Why These Related Problems?
These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.