Finding the Fourth Proportional to 198,891.48, 274,422.35 and 117,222.99
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Solution
The fourth proportional to 198,891.48, 274,422.35 and 117,222.99 is: 161,739.50
Step by Step Solution
- Step 1: Write the proportion equation
198,891.48 : 274,422.35 = 117,222.99 : x - Step 2: Convert to fraction form
198,891.48/274,422.35 = 117,222.99/x - Step 3: Cross multiply
198,891.48x = 274,422.35 × 117,222.99 - Step 4: Simplify right side
198,891.48x = 32,168,607,803.71 - Step 5: Solve for x
x = 32,168,607,803.71/198,891.48 - Step 6: Final answer
x = 161,739.50
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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.