Finding the Fourth Proportional to 198,791.54, 274,311.83 and 118,203.49
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Solution
The fourth proportional to 198,791.54, 274,311.83 and 118,203.49 is: 163,108.63
Step by Step Solution
- Step 1: Write the proportion equation
198,791.54 : 274,311.83 = 118,203.49 : x - Step 2: Convert to fraction form
198,791.54/274,311.83 = 118,203.49/x - Step 3: Cross multiply
198,791.54x = 274,311.83 × 118,203.49 - Step 4: Simplify right side
198,791.54x = 32,424,615,264.02 - Step 5: Solve for x
x = 32,424,615,264.02/198,791.54 - Step 6: Final answer
x = 163,108.63
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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.