Finding the Fourth Proportional to 275,324.40, 412,986.60 and 157,226.40
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Solution
The fourth proportional to 275,324.40, 412,986.60 and 157,226.40 is: 235,839.60
Step by Step Solution
- Step 1: Write the proportion equation
275,324.40 : 412,986.60 = 157,226.40 : x - Step 2: Convert to fraction form
275,324.40/412,986.60 = 157,226.40/x - Step 3: Cross multiply
275,324.40x = 412,986.60 × 157,226.40 - Step 4: Simplify right side
275,324.40x = 64,932,396,366.24 - Step 5: Solve for x
x = 64,932,396,366.24/275,324.40 - Step 6: Final answer
x = 235,839.60
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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.