Finding the Fourth Proportional to 207,366.05, 311,170.05 and 87,415.71
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Solution
The fourth proportional to 207,366.05, 311,170.05 and 87,415.71 is: 131,174.56
Step by Step Solution
- Step 1: Write the proportion equation
207,366.05 : 311,170.05 = 87,415.71 : x - Step 2: Convert to fraction form
207,366.05/311,170.05 = 87,415.71/x - Step 3: Cross multiply
207,366.05x = 311,170.05 × 87,415.71 - Step 4: Simplify right side
207,366.05x = 27,201,150,851.49 - Step 5: Solve for x
x = 27,201,150,851.49/207,366.05 - Step 6: Final answer
x = 131,174.56
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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.