Finding the Fourth Proportional to 198,455.83, 273,867.94 and 107,811.07
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Solution
The fourth proportional to 198,455.83, 273,867.94 and 107,811.07 is: 148,778.68
Step by Step Solution
- Step 1: Write the proportion equation
198,455.83 : 273,867.94 = 107,811.07 : x - Step 2: Convert to fraction form
198,455.83/273,867.94 = 107,811.07/x - Step 3: Cross multiply
198,455.83x = 273,867.94 × 107,811.07 - Step 4: Simplify right side
198,455.83x = 29,525,995,650.10 - Step 5: Solve for x
x = 29,525,995,650.10/198,455.83 - Step 6: Final answer
x = 148,778.68
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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.