Finding the Fourth Proportional to 198,315.74, 273,674.21 and 107,669.92
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Solution
The fourth proportional to 198,315.74, 273,674.21 and 107,669.92 is: 148,583.67
Step by Step Solution
- Step 1: Write the proportion equation
198,315.74 : 273,674.21 = 107,669.92 : x - Step 2: Convert to fraction form
198,315.74/273,674.21 = 107,669.92/x - Step 3: Cross multiply
198,315.74x = 273,674.21 × 107,669.92 - Step 4: Simplify right side
198,315.74x = 29,466,480,296.76 - Step 5: Solve for x
x = 29,466,480,296.76/198,315.74 - Step 6: Final answer
x = 148,583.67
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1.5x scale
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.