Finding the Fourth Proportional to 248,819.75, 343,361.07 and 139,920.99
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Solution
The fourth proportional to 248,819.75, 343,361.07 and 139,920.99 is: 193,085.23
Step by Step Solution
- Step 1: Write the proportion equation
248,819.75 : 343,361.07 = 139,920.99 : x - Step 2: Convert to fraction form
248,819.75/343,361.07 = 139,920.99/x - Step 3: Cross multiply
248,819.75x = 343,361.07 × 139,920.99 - Step 4: Simplify right side
248,819.75x = 48,043,418,425.45 - Step 5: Solve for x
x = 48,043,418,425.45/248,819.75 - Step 6: Final answer
x = 193,085.23
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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.