Finding the Fourth Proportional to 220,820.74, 331,231.17 and 71,072.75
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Solution
The fourth proportional to 220,820.74, 331,231.17 and 71,072.75 is: 106,609.14
Step by Step Solution
- Step 1: Write the proportion equation
220,820.74 : 331,231.17 = 71,072.75 : x - Step 2: Convert to fraction form
220,820.74/331,231.17 = 71,072.75/x - Step 3: Cross multiply
220,820.74x = 331,231.17 × 71,072.75 - Step 4: Simplify right side
220,820.74x = 23,541,510,137.62 - Step 5: Solve for x
x = 23,541,510,137.62/220,820.74 - Step 6: Final answer
x = 106,609.14
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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.