Finding the Fourth Proportional to 207,709.80, 311,564.70 and 67,482.60
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Solution
The fourth proportional to 207,709.80, 311,564.70 and 67,482.60 is: 101,223.90
Step by Step Solution
- Step 1: Write the proportion equation
207,709.80 : 311,564.70 = 67,482.60 : x - Step 2: Convert to fraction form
207,709.80/311,564.70 = 67,482.60/x - Step 3: Cross multiply
207,709.80x = 311,564.70 × 67,482.60 - Step 4: Simplify right side
207,709.80x = 21,025,196,024.22 - Step 5: Solve for x
x = 21,025,196,024.22/207,709.80 - Step 6: Final answer
x = 101,223.90
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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.