Finding the Fourth Proportional to 207,915.80, 311,873.70 and 207,915.80
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Solution
The fourth proportional to 207,915.80, 311,873.70 and 207,915.80 is: 311,873.70
Step by Step Solution
- Step 1: Write the proportion equation
207,915.80 : 311,873.70 = 207,915.80 : x - Step 2: Convert to fraction form
207,915.80/311,873.70 = 207,915.80/x - Step 3: Cross multiply
207,915.80x = 311,873.70 × 207,915.80 - Step 4: Simplify right side
207,915.80x = 64,843,469,834.46 - Step 5: Solve for x
x = 64,843,469,834.46/207,915.80 - Step 6: Final answer
x = 311,873.70
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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.