Finding the Fourth Proportional to 198,620.94, 274,098.68 and 107,977.08
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Solution
The fourth proportional to 198,620.94, 274,098.68 and 107,977.08 is: 149,009.34
Step by Step Solution
- Step 1: Write the proportion equation
198,620.94 : 274,098.68 = 107,977.08 : x - Step 2: Convert to fraction form
198,620.94/274,098.68 = 107,977.08/x - Step 3: Cross multiply
198,620.94x = 274,098.68 × 107,977.08 - Step 4: Simplify right side
198,620.94x = 29,596,374,558.37 - Step 5: Solve for x
x = 29,596,374,558.37/198,620.94 - Step 6: Final answer
x = 149,009.34
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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.