Finding the Fourth Proportional to 206,806.40, 310,209.60 and 88,489.70
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Solution
The fourth proportional to 206,806.40, 310,209.60 and 88,489.70 is: 132,734.55
Step by Step Solution
- Step 1: Write the proportion equation
206,806.40 : 310,209.60 = 88,489.70 : x - Step 2: Convert to fraction form
206,806.40/310,209.60 = 88,489.70/x - Step 3: Cross multiply
206,806.40x = 310,209.60 × 88,489.70 - Step 4: Simplify right side
206,806.40x = 27,450,354,441.12 - Step 5: Solve for x
x = 27,450,354,441.12/206,806.40 - Step 6: Final answer
x = 132,734.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.