Finding the Fourth Proportional to 275,755.94, 413,634.21 and 86,217.29
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Solution
The fourth proportional to 275,755.94, 413,634.21 and 86,217.29 is: 129,326.02
Step by Step Solution
- Step 1: Write the proportion equation
275,755.94 : 413,634.21 = 86,217.29 : x - Step 2: Convert to fraction form
275,755.94/413,634.21 = 86,217.29/x - Step 3: Cross multiply
275,755.94x = 413,634.21 × 86,217.29 - Step 4: Simplify right side
275,755.94x = 35,662,418,569.32 - Step 5: Solve for x
x = 35,662,418,569.32/275,755.94 - Step 6: Final answer
x = 129,326.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.