Finding the Fourth Proportional to 198,987.68, 274,602.84 and 109,563.68
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Solution
The fourth proportional to 198,987.68, 274,602.84 and 109,563.68 is: 151,197.79
Step by Step Solution
- Step 1: Write the proportion equation
198,987.68 : 274,602.84 = 109,563.68 : x - Step 2: Convert to fraction form
198,987.68/274,602.84 = 109,563.68/x - Step 3: Cross multiply
198,987.68x = 274,602.84 × 109,563.68 - Step 4: Simplify right side
198,987.68x = 30,086,497,688.85 - Step 5: Solve for x
x = 30,086,497,688.85/198,987.68 - Step 6: Final answer
x = 151,197.79
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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.