Finding the Fourth Proportional to 210,536.26, 290,540.79 and 115,042.96
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Solution
The fourth proportional to 210,536.26, 290,540.79 and 115,042.96 is: 158,759.69
Step by Step Solution
- Step 1: Write the proportion equation
210,536.26 : 290,540.79 = 115,042.96 : x - Step 2: Convert to fraction form
210,536.26/290,540.79 = 115,042.96/x - Step 3: Cross multiply
210,536.26x = 290,540.79 × 115,042.96 - Step 4: Simplify right side
210,536.26x = 33,424,671,543.03 - Step 5: Solve for x
x = 33,424,671,543.03/210,536.26 - Step 6: Final answer
x = 158,759.69
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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.