Finding the Fourth Proportional to 207,493.21, 311,042.97 and 102,189.16
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Solution
The fourth proportional to 207,493.21, 311,042.97 and 102,189.16 is: 153,186.80
Step by Step Solution
- Step 1: Write the proportion equation
207,493.21 : 311,042.97 = 102,189.16 : x - Step 2: Convert to fraction form
207,493.21/311,042.97 = 102,189.16/x - Step 3: Cross multiply
207,493.21x = 311,042.97 × 102,189.16 - Step 4: Simplify right side
207,493.21x = 31,785,219,828.21 - Step 5: Solve for x
x = 31,785,219,828.21/207,493.21 - Step 6: Final answer
x = 153,186.80
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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.