Finding the Fourth Proportional to 198,221.79, 273,546.20 and 107,577.73
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Solution
The fourth proportional to 198,221.79, 273,546.20 and 107,577.73 is: 148,457.34
Step by Step Solution
- Step 1: Write the proportion equation
198,221.79 : 273,546.20 = 107,577.73 : x - Step 2: Convert to fraction form
198,221.79/273,546.20 = 107,577.73/x - Step 3: Cross multiply
198,221.79x = 273,546.20 × 107,577.73 - Step 4: Simplify right side
198,221.79x = 29,427,479,246.13 - Step 5: Solve for x
x = 29,427,479,246.13/198,221.79 - Step 6: Final answer
x = 148,457.34
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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.