Finding the Fourth Proportional to 207,497.40, 311,246.10 and 144,511.80
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Solution
The fourth proportional to 207,497.40, 311,246.10 and 144,511.80 is: 216,767.70
Step by Step Solution
- Step 1: Write the proportion equation
207,497.40 : 311,246.10 = 144,511.80 : x - Step 2: Convert to fraction form
207,497.40/311,246.10 = 144,511.80/x - Step 3: Cross multiply
207,497.40x = 311,246.10 × 144,511.80 - Step 4: Simplify right side
207,497.40x = 44,978,734,153.98 - Step 5: Solve for x
x = 44,978,734,153.98/207,497.40 - Step 6: Final answer
x = 216,767.70
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1.5x scale
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.