Finding the Fourth Proportional to 252,839.26, 348,917.12 and 139,662.01
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Solution
The fourth proportional to 252,839.26, 348,917.12 and 139,662.01 is: 192,732.99
Step by Step Solution
- Step 1: Write the proportion equation
252,839.26 : 348,917.12 = 139,662.01 : x - Step 2: Convert to fraction form
252,839.26/348,917.12 = 139,662.01/x - Step 3: Cross multiply
252,839.26x = 348,917.12 × 139,662.01 - Step 4: Simplify right side
252,839.26x = 48,730,465,604.30 - Step 5: Solve for x
x = 48,730,465,604.30/252,839.26 - Step 6: Final answer
x = 192,732.99
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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.