Finding the Fourth Proportional to 198,360.36, 273,731.94 and 107,712.18
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Solution
The fourth proportional to 198,360.36, 273,731.94 and 107,712.18 is: 148,639.90
Step by Step Solution
- Step 1: Write the proportion equation
198,360.36 : 273,731.94 = 107,712.18 : x - Step 2: Convert to fraction form
198,360.36/273,731.94 = 107,712.18/x - Step 3: Cross multiply
198,360.36x = 273,731.94 × 107,712.18 - Step 4: Simplify right side
198,360.36x = 29,484,263,993.03 - Step 5: Solve for x
x = 29,484,263,993.03/198,360.36 - Step 6: Final answer
x = 148,639.90
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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.