Finding the Fourth Proportional to 198,698.68, 274,204.02 and 109,274.68
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Solution
The fourth proportional to 198,698.68, 274,204.02 and 109,274.68 is: 150,798.97
Step by Step Solution
- Step 1: Write the proportion equation
198,698.68 : 274,204.02 = 109,274.68 : x - Step 2: Convert to fraction form
198,698.68/274,204.02 = 109,274.68/x - Step 3: Cross multiply
198,698.68x = 274,204.02 × 109,274.68 - Step 4: Simplify right side
198,698.68x = 29,963,556,540.21 - Step 5: Solve for x
x = 29,963,556,540.21/198,698.68 - Step 6: Final answer
x = 150,798.97
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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.