Finding the Fourth Proportional to 289,301.97, 399,232.26 and 161,982.12
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Solution
The fourth proportional to 289,301.97, 399,232.26 and 161,982.12 is: 223,532.83
Step by Step Solution
- Step 1: Write the proportion equation
289,301.97 : 399,232.26 = 161,982.12 : x - Step 2: Convert to fraction form
289,301.97/399,232.26 = 161,982.12/x - Step 3: Cross multiply
289,301.97x = 399,232.26 × 161,982.12 - Step 4: Simplify right side
289,301.97x = 64,668,487,847.19 - Step 5: Solve for x
x = 64,668,487,847.19/289,301.97 - Step 6: Final answer
x = 223,532.83
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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.