Finding the Fourth Proportional to 215,791.75, 297,734.18 and 122,656.17
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Solution
The fourth proportional to 215,791.75, 297,734.18 and 122,656.17 is: 169,232.31
Step by Step Solution
- Step 1: Write the proportion equation
215,791.75 : 297,734.18 = 122,656.17 : x - Step 2: Convert to fraction form
215,791.75/297,734.18 = 122,656.17/x - Step 3: Cross multiply
215,791.75x = 297,734.18 × 122,656.17 - Step 4: Simplify right side
215,791.75x = 36,518,935,390.05 - Step 5: Solve for x
x = 36,518,935,390.05/215,791.75 - Step 6: Final answer
x = 169,232.31
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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.