Finding the Fourth Proportional to 207,377.82, 311,116.12 and 67,136.44
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Solution
The fourth proportional to 207,377.82, 311,116.12 and 67,136.44 is: 100,720.65
Step by Step Solution
- Step 1: Write the proportion equation
207,377.82 : 311,116.12 = 67,136.44 : x - Step 2: Convert to fraction form
207,377.82/311,116.12 = 67,136.44/x - Step 3: Cross multiply
207,377.82x = 311,116.12 × 67,136.44 - Step 4: Simplify right side
207,377.82x = 20,887,228,723.41 - Step 5: Solve for x
x = 20,887,228,723.41/207,377.82 - Step 6: Final answer
x = 100,720.65
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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.