Finding the Fourth Proportional to 207,389.99, 311,205.74 and 87,439.43
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Solution
The fourth proportional to 207,389.99, 311,205.74 and 87,439.43 is: 131,210.06
Step by Step Solution
- Step 1: Write the proportion equation
207,389.99 : 311,205.74 = 87,439.43 : x - Step 2: Convert to fraction form
207,389.99/311,205.74 = 87,439.43/x - Step 3: Cross multiply
207,389.99x = 311,205.74 × 87,439.43 - Step 4: Simplify right side
207,389.99x = 27,211,652,859.15 - Step 5: Solve for x
x = 27,211,652,859.15/207,389.99 - Step 6: Final answer
x = 131,210.06
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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.