Finding the Fourth Proportional to 207,905.20, 311,201.70 and 201,344.20
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Solution
The fourth proportional to 207,905.20, 311,201.70 and 201,344.20 is: 301,380.90
Step by Step Solution
- Step 1: Write the proportion equation
207,905.20 : 311,201.70 = 201,344.20 : x - Step 2: Convert to fraction form
207,905.20/311,201.70 = 201,344.20/x - Step 3: Cross multiply
207,905.20x = 311,201.70 × 201,344.20 - Step 4: Simplify right side
207,905.20x = 62,658,657,325.14 - Step 5: Solve for x
x = 62,658,657,325.14/207,905.20 - Step 6: Final answer
x = 301,380.90
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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.