Finding the Fourth Proportional to 281,989.99, 389,152.26 and 154,665.28
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Solution
The fourth proportional to 281,989.99, 389,152.26 and 154,665.28 is: 213,441.42
Step by Step Solution
- Step 1: Write the proportion equation
281,989.99 : 389,152.26 = 154,665.28 : x - Step 2: Convert to fraction form
281,989.99/389,152.26 = 154,665.28/x - Step 3: Cross multiply
281,989.99x = 389,152.26 × 154,665.28 - Step 4: Simplify right side
281,989.99x = 60,188,343,255.53 - Step 5: Solve for x
x = 60,188,343,255.53/281,989.99 - Step 6: Final answer
x = 213,441.42
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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.