Finding the Fourth Proportional to 198,580.49, 274,042.91 and 107,936.66
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Solution
The fourth proportional to 198,580.49, 274,042.91 and 107,936.66 is: 148,953.59
Step by Step Solution
- Step 1: Write the proportion equation
198,580.49 : 274,042.91 = 107,936.66 : x - Step 2: Convert to fraction form
198,580.49/274,042.91 = 107,936.66/x - Step 3: Cross multiply
198,580.49x = 274,042.91 × 107,936.66 - Step 4: Simplify right side
198,580.49x = 29,579,276,402.08 - Step 5: Solve for x
x = 29,579,276,402.08/198,580.49 - Step 6: Final answer
x = 148,953.59
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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.