Finding the Fourth Proportional to 217,185.88, 299,713.62 and 121,694.44
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Solution
The fourth proportional to 217,185.88, 299,713.62 and 121,694.44 is: 167,936.71
Step by Step Solution
- Step 1: Write the proportion equation
217,185.88 : 299,713.62 = 121,694.44 : x - Step 2: Convert to fraction form
217,185.88/299,713.62 = 121,694.44/x - Step 3: Cross multiply
217,185.88x = 299,713.62 × 121,694.44 - Step 4: Simplify right side
217,185.88x = 36,473,481,146.27 - Step 5: Solve for x
x = 36,473,481,146.27/217,185.88 - Step 6: Final answer
x = 167,936.71
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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.