Finding the Fourth Proportional to 198,542.14, 273,989.88 and 107,898.09
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Solution
The fourth proportional to 198,542.14, 273,989.88 and 107,898.09 is: 148,900.30
Step by Step Solution
- Step 1: Write the proportion equation
198,542.14 : 273,989.88 = 107,898.09 : x - Step 2: Convert to fraction form
198,542.14/273,989.88 = 107,898.09/x - Step 3: Cross multiply
198,542.14x = 273,989.88 × 107,898.09 - Step 4: Simplify right side
198,542.14x = 29,562,983,703.87 - Step 5: Solve for x
x = 29,562,983,703.87/198,542.14 - Step 6: Final answer
x = 148,900.30
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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.