Finding the Fourth Proportional to 297,993.75, 411,231.38 and 163,857.75
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Solution
The fourth proportional to 297,993.75, 411,231.38 and 163,857.75 is: 226,123.70
Step by Step Solution
- Step 1: Write the proportion equation
297,993.75 : 411,231.38 = 163,857.75 : x - Step 2: Convert to fraction form
297,993.75/411,231.38 = 163,857.75/x - Step 3: Cross multiply
297,993.75x = 411,231.38 × 163,857.75 - Step 4: Simplify right side
297,993.75x = 67,383,448,656.20 - Step 5: Solve for x
x = 67,383,448,656.20/297,993.75 - Step 6: Final answer
x = 226,123.70
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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.