Finding the Fourth Proportional to 206,838.18, 285,436.53 and 117,414.18
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Solution
The fourth proportional to 206,838.18, 285,436.53 and 117,414.18 is: 162,031.48
Step by Step Solution
- Step 1: Write the proportion equation
206,838.18 : 285,436.53 = 117,414.18 : x - Step 2: Convert to fraction form
206,838.18/285,436.53 = 117,414.18/x - Step 3: Cross multiply
206,838.18x = 285,436.53 × 117,414.18 - Step 4: Simplify right side
206,838.18x = 33,514,296,112.00 - Step 5: Solve for x
x = 33,514,296,112.00/206,838.18 - Step 6: Final answer
x = 162,031.48
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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.