Finding the Fourth Proportional to 216,696.05, 299,042.44 and 121,211.63
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Solution
The fourth proportional to 216,696.05, 299,042.44 and 121,211.63 is: 167,273.10
Step by Step Solution
- Step 1: Write the proportion equation
216,696.05 : 299,042.44 = 121,211.63 : x - Step 2: Convert to fraction form
216,696.05/299,042.44 = 121,211.63/x - Step 3: Cross multiply
216,696.05x = 299,042.44 × 121,211.63 - Step 4: Simplify right side
216,696.05x = 36,247,419,793.34 - Step 5: Solve for x
x = 36,247,419,793.34/216,696.05 - Step 6: Final answer
x = 167,273.10
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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.