Finding the Fourth Proportional to 275,868.99, 380,687.06 and 161,158.26
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Solution
The fourth proportional to 275,868.99, 380,687.06 and 161,158.26 is: 222,391.30
Step by Step Solution
- Step 1: Write the proportion equation
275,868.99 : 380,687.06 = 161,158.26 : x - Step 2: Convert to fraction form
275,868.99/380,687.06 = 161,158.26/x - Step 3: Cross multiply
275,868.99x = 380,687.06 × 161,158.26 - Step 4: Simplify right side
275,868.99x = 61,350,863,388.32 - Step 5: Solve for x
x = 61,350,863,388.32/275,868.99 - Step 6: Final answer
x = 222,391.30
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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.