Finding the Fourth Proportional to 207,515.39, 311,226.36 and 135,445.62
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Solution
The fourth proportional to 207,515.39, 311,226.36 and 135,445.62 is: 203,137.93
Step by Step Solution
- Step 1: Write the proportion equation
207,515.39 : 311,226.36 = 135,445.62 : x - Step 2: Convert to fraction form
207,515.39/311,226.36 = 135,445.62/x - Step 3: Cross multiply
207,515.39x = 311,226.36 × 135,445.62 - Step 4: Simplify right side
207,515.39x = 42,154,245,057.18 - Step 5: Solve for x
x = 42,154,245,057.18/207,515.39 - Step 6: Final answer
x = 203,137.93
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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.