Finding the Fourth Proportional to 290,659.36, 401,104.56 and 163,333.12
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Solution
The fourth proportional to 290,659.36, 401,104.56 and 163,333.12 is: 225,396.70
Step by Step Solution
- Step 1: Write the proportion equation
290,659.36 : 401,104.56 = 163,333.12 : x - Step 2: Convert to fraction form
290,659.36/401,104.56 = 163,333.12/x - Step 3: Cross multiply
290,659.36x = 401,104.56 × 163,333.12 - Step 4: Simplify right side
290,659.36x = 65,513,659,231.03 - Step 5: Solve for x
x = 65,513,659,231.03/290,659.36 - Step 6: Final answer
x = 225,396.70
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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.