Finding the Fourth Proportional to 198,011.88, 273,231.88 and 126,433.80
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Solution
The fourth proportional to 198,011.88, 273,231.88 and 126,433.80 is: 174,462.99
Step by Step Solution
- Step 1: Write the proportion equation
198,011.88 : 273,231.88 = 126,433.80 : x - Step 2: Convert to fraction form
198,011.88/273,231.88 = 126,433.80/x - Step 3: Cross multiply
198,011.88x = 273,231.88 × 126,433.80 - Step 4: Simplify right side
198,011.88x = 34,545,744,869.54 - Step 5: Solve for x
x = 34,545,744,869.54/198,011.88 - Step 6: Final answer
x = 174,462.99
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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.