Finding the Fourth Proportional to 207,918.14, 311,915.68 and 65,799.18
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Solution
The fourth proportional to 207,918.14, 311,915.68 and 65,799.18 is: 98,710.95
Step by Step Solution
- Step 1: Write the proportion equation
207,918.14 : 311,915.68 = 65,799.18 : x - Step 2: Convert to fraction form
207,918.14/311,915.68 = 65,799.18/x - Step 3: Cross multiply
207,918.14x = 311,915.68 × 65,799.18 - Step 4: Simplify right side
207,918.14x = 20,523,795,808.64 - Step 5: Solve for x
x = 20,523,795,808.64/207,918.14 - Step 6: Final answer
x = 98,710.95
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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.