Finding the Fourth Proportional to 198,570.57, 274,029.21 and 107,926.74
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Solution
The fourth proportional to 198,570.57, 274,029.21 and 107,926.74 is: 148,939.89
Step by Step Solution
- Step 1: Write the proportion equation
198,570.57 : 274,029.21 = 107,926.74 : x - Step 2: Convert to fraction form
198,570.57/274,029.21 = 107,926.74/x - Step 3: Cross multiply
198,570.57x = 274,029.21 × 107,926.74 - Step 4: Simplify right side
198,570.57x = 29,575,079,300.08 - Step 5: Solve for x
x = 29,575,079,300.08/198,570.57 - Step 6: Final answer
x = 148,939.89
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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.