Finding the Fourth Proportional to 198,268.80, 273,611.10 and 107,624.70
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Solution
The fourth proportional to 198,268.80, 273,611.10 and 107,624.70 is: 148,522.17
Step by Step Solution
- Step 1: Write the proportion equation
198,268.80 : 273,611.10 = 107,624.70 : x - Step 2: Convert to fraction form
198,268.80/273,611.10 = 107,624.70/x - Step 3: Cross multiply
198,268.80x = 273,611.10 × 107,624.70 - Step 4: Simplify right side
198,268.80x = 29,447,312,554.17 - Step 5: Solve for x
x = 29,447,312,554.17/198,268.80 - Step 6: Final answer
x = 148,522.17
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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.