Finding the Fourth Proportional to 198,885.48, 274,414.06 and 117,216.99
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Solution
The fourth proportional to 198,885.48, 274,414.06 and 117,216.99 is: 161,731.22
Step by Step Solution
- Step 1: Write the proportion equation
198,885.48 : 274,414.06 = 117,216.99 : x - Step 2: Convert to fraction form
198,885.48/274,414.06 = 117,216.99/x - Step 3: Cross multiply
198,885.48x = 274,414.06 × 117,216.99 - Step 4: Simplify right side
198,885.48x = 32,165,990,273.40 - Step 5: Solve for x
x = 32,165,990,273.40/198,885.48 - Step 6: Final answer
x = 161,731.22
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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.