Finding the Fourth Proportional to 207,907.10, 311,860.65 and 102,931.10
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Solution
The fourth proportional to 207,907.10, 311,860.65 and 102,931.10 is: 154,396.65
Step by Step Solution
- Step 1: Write the proportion equation
207,907.10 : 311,860.65 = 102,931.10 : x - Step 2: Convert to fraction form
207,907.10/311,860.65 = 102,931.10/x - Step 3: Cross multiply
207,907.10x = 311,860.65 × 102,931.10 - Step 4: Simplify right side
207,907.10x = 32,100,159,751.22 - Step 5: Solve for x
x = 32,100,159,751.22/207,907.10 - Step 6: Final answer
x = 154,396.65
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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.