Finding the Fourth Proportional to 212,878.73, 293,843.84 and 126,864.70
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Solution
The fourth proportional to 212,878.73, 293,843.84 and 126,864.70 is: 175,115.70
Step by Step Solution
- Step 1: Write the proportion equation
212,878.73 : 293,843.84 = 126,864.70 : x - Step 2: Convert to fraction form
212,878.73/293,843.84 = 126,864.70/x - Step 3: Cross multiply
212,878.73x = 293,843.84 × 126,864.70 - Step 4: Simplify right side
212,878.73x = 37,278,409,239.51 - Step 5: Solve for x
x = 37,278,409,239.51/212,878.73 - Step 6: Final answer
x = 175,115.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.