Finding the Fourth Proportional to 207,911.08, 311,863.90 and 50,138.36
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Solution
The fourth proportional to 207,911.08, 311,863.90 and 50,138.36 is: 75,206.88
Step by Step Solution
- Step 1: Write the proportion equation
207,911.08 : 311,863.90 = 50,138.36 : x - Step 2: Convert to fraction form
207,911.08/311,863.90 = 50,138.36/x - Step 3: Cross multiply
207,911.08x = 311,863.90 × 50,138.36 - Step 4: Simplify right side
207,911.08x = 15,636,344,489.20 - Step 5: Solve for x
x = 15,636,344,489.20/207,911.08 - Step 6: Final answer
x = 75,206.88
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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.