Finding the Fourth Proportional to 381,278.80, 526,163.16 and 211,512.97
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Solution
The fourth proportional to 381,278.80, 526,163.16 and 211,512.97 is: 291,887.02
Step by Step Solution
- Step 1: Write the proportion equation
381,278.80 : 526,163.16 = 211,512.97 : x - Step 2: Convert to fraction form
381,278.80/526,163.16 = 211,512.97/x - Step 3: Cross multiply
381,278.80x = 526,163.16 × 211,512.97 - Step 4: Simplify right side
381,278.80x = 111,290,332,676.19 - Step 5: Solve for x
x = 111,290,332,676.19/381,278.80 - Step 6: Final answer
x = 291,887.02
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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.