Finding the Fourth Proportional to 275,785.02, 380,252.21 and 199,181.70
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Solution
The fourth proportional to 275,785.02, 380,252.21 and 199,181.70 is: 274,631.60
Step by Step Solution
- Step 1: Write the proportion equation
275,785.02 : 380,252.21 = 199,181.70 : x - Step 2: Convert to fraction form
275,785.02/380,252.21 = 199,181.70/x - Step 3: Cross multiply
275,785.02x = 380,252.21 × 199,181.70 - Step 4: Simplify right side
275,785.02x = 75,739,280,620.65 - Step 5: Solve for x
x = 75,739,280,620.65/275,785.02 - Step 6: Final answer
x = 274,631.60
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.