Finding the Fourth Proportional to 207,625.40, 311,438.10 and 187,286.30
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Solution
The fourth proportional to 207,625.40, 311,438.10 and 187,286.30 is: 280,929.45
Step by Step Solution
- Step 1: Write the proportion equation
207,625.40 : 311,438.10 = 187,286.30 : x - Step 2: Convert to fraction form
207,625.40/311,438.10 = 187,286.30/x - Step 3: Cross multiply
207,625.40x = 311,438.10 × 187,286.30 - Step 4: Simplify right side
207,625.40x = 58,328,089,428.03 - Step 5: Solve for x
x = 58,328,089,428.03/207,625.40 - Step 6: Final answer
x = 280,929.45
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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.