Finding the Fourth Proportional to 198,765.12, 274,203.72 and 118,147.44
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Solution
The fourth proportional to 198,765.12, 274,203.72 and 118,147.44 is: 162,988.70
Step by Step Solution
- Step 1: Write the proportion equation
198,765.12 : 274,203.72 = 118,147.44 : x - Step 2: Convert to fraction form
198,765.12/274,203.72 = 118,147.44/x - Step 3: Cross multiply
198,765.12x = 274,203.72 × 118,147.44 - Step 4: Simplify right side
198,765.12x = 32,396,467,556.48 - Step 5: Solve for x
x = 32,396,467,556.48/198,765.12 - Step 6: Final answer
x = 162,988.70
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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.