Finding the Fourth Proportional to 271,493.78, 374,715.92 and 156,791.09
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Solution
The fourth proportional to 271,493.78, 374,715.92 and 156,791.09 is: 216,403.19
Step by Step Solution
- Step 1: Write the proportion equation
271,493.78 : 374,715.92 = 156,791.09 : x - Step 2: Convert to fraction form
271,493.78/374,715.92 = 156,791.09/x - Step 3: Cross multiply
271,493.78x = 374,715.92 × 156,791.09 - Step 4: Simplify right side
271,493.78x = 58,752,118,865.92 - Step 5: Solve for x
x = 58,752,118,865.92/271,493.78 - Step 6: Final answer
x = 216,403.19
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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.