Finding the Fourth Proportional to 198,743.84, 274,199.60 and 134,970.96
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Solution
The fourth proportional to 198,743.84, 274,199.60 and 134,970.96 is: 186,214.49
Step by Step Solution
- Step 1: Write the proportion equation
198,743.84 : 274,199.60 = 134,970.96 : x - Step 2: Convert to fraction form
198,743.84/274,199.60 = 134,970.96/x - Step 3: Cross multiply
198,743.84x = 274,199.60 × 134,970.96 - Step 4: Simplify right side
198,743.84x = 37,008,983,243.62 - Step 5: Solve for x
x = 37,008,983,243.62/198,743.84 - Step 6: Final answer
x = 186,214.49
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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.