Finding the Fourth Proportional to 281,021.05, 421,553.58 and 81,344.44
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Solution
The fourth proportional to 281,021.05, 421,553.58 and 81,344.44 is: 122,023.03
Step by Step Solution
- Step 1: Write the proportion equation
281,021.05 : 421,553.58 = 81,344.44 : x - Step 2: Convert to fraction form
281,021.05/421,553.58 = 81,344.44/x - Step 3: Cross multiply
281,021.05x = 421,553.58 × 81,344.44 - Step 4: Simplify right side
281,021.05x = 34,291,039,895.10 - Step 5: Solve for x
x = 34,291,039,895.10/281,021.05 - Step 6: Final answer
x = 122,023.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.