Finding the Fourth Proportional to 207,878.10, 311,817.15 and 204,767.70
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Solution
The fourth proportional to 207,878.10, 311,817.15 and 204,767.70 is: 307,151.55
Step by Step Solution
- Step 1: Write the proportion equation
207,878.10 : 311,817.15 = 204,767.70 : x - Step 2: Convert to fraction form
207,878.10/311,817.15 = 204,767.70/x - Step 3: Cross multiply
207,878.10x = 311,817.15 × 204,767.70 - Step 4: Simplify right side
207,878.10x = 63,850,080,626.06 - Step 5: Solve for x
x = 63,850,080,626.06/207,878.10 - Step 6: Final answer
x = 307,151.55
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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.