Finding the Fourth Proportional to 198,420.05, 273,822.98 and 107,776.19
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Solution
The fourth proportional to 198,420.05, 273,822.98 and 107,776.19 is: 148,732.93
Step by Step Solution
- Step 1: Write the proportion equation
198,420.05 : 273,822.98 = 107,776.19 : x - Step 2: Convert to fraction form
198,420.05/273,822.98 = 107,776.19/x - Step 3: Cross multiply
198,420.05x = 273,822.98 × 107,776.19 - Step 4: Simplify right side
198,420.05x = 29,511,595,610.85 - Step 5: Solve for x
x = 29,511,595,610.85/198,420.05 - Step 6: Final answer
x = 148,732.93
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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.