Finding the Fourth Proportional to 300,319.40, 450,518.74 and 110,912.90
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Solution
The fourth proportional to 300,319.40, 450,518.74 and 110,912.90 is: 166,383.99
Step by Step Solution
- Step 1: Write the proportion equation
300,319.40 : 450,518.74 = 110,912.90 : x - Step 2: Convert to fraction form
300,319.40/450,518.74 = 110,912.90/x - Step 3: Cross multiply
300,319.40x = 450,518.74 × 110,912.90 - Step 4: Simplify right side
300,319.40x = 49,968,339,957.75 - Step 5: Solve for x
x = 49,968,339,957.75/300,319.40 - Step 6: Final answer
x = 166,383.99
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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.