Finding the Fourth Proportional to 207,811.30, 311,716.95 and 207,811.30
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Solution
The fourth proportional to 207,811.30, 311,716.95 and 207,811.30 is: 311,716.95
Step by Step Solution
- Step 1: Write the proportion equation
207,811.30 : 311,716.95 = 207,811.30 : x - Step 2: Convert to fraction form
207,811.30/311,716.95 = 207,811.30/x - Step 3: Cross multiply
207,811.30x = 311,716.95 × 207,811.30 - Step 4: Simplify right side
207,811.30x = 64,778,304,611.54 - Step 5: Solve for x
x = 64,778,304,611.54/207,811.30 - Step 6: Final answer
x = 311,716.95
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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.