Finding the Fourth Proportional to 203,908.20, 305,862.30 and 161,917.80
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Solution
The fourth proportional to 203,908.20, 305,862.30 and 161,917.80 is: 242,876.70
Step by Step Solution
- Step 1: Write the proportion equation
203,908.20 : 305,862.30 = 161,917.80 : x - Step 2: Convert to fraction form
203,908.20/305,862.30 = 161,917.80/x - Step 3: Cross multiply
203,908.20x = 305,862.30 × 161,917.80 - Step 4: Simplify right side
203,908.20x = 49,524,550,718.94 - Step 5: Solve for x
x = 49,524,550,718.94/203,908.20 - Step 6: Final answer
x = 242,876.70
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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.