Finding the Fourth Proportional to 207,612.36, 311,261.52 and 87,706.44
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Solution
The fourth proportional to 207,612.36, 311,261.52 and 87,706.44 is: 131,493.33
Step by Step Solution
- Step 1: Write the proportion equation
207,612.36 : 311,261.52 = 87,706.44 : x - Step 2: Convert to fraction form
207,612.36/311,261.52 = 87,706.44/x - Step 3: Cross multiply
207,612.36x = 311,261.52 × 87,706.44 - Step 4: Simplify right side
207,612.36x = 27,299,639,828.19 - Step 5: Solve for x
x = 27,299,639,828.19/207,612.36 - Step 6: Final answer
x = 131,493.33
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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.