Finding the Fourth Proportional to 209,982.80, 314,974.20 and 177,177.80
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Solution
The fourth proportional to 209,982.80, 314,974.20 and 177,177.80 is: 265,766.70
Step by Step Solution
- Step 1: Write the proportion equation
209,982.80 : 314,974.20 = 177,177.80 : x - Step 2: Convert to fraction form
209,982.80/314,974.20 = 177,177.80/x - Step 3: Cross multiply
209,982.80x = 314,974.20 × 177,177.80 - Step 4: Simplify right side
209,982.80x = 55,806,435,812.76 - Step 5: Solve for x
x = 55,806,435,812.76/209,982.80 - Step 6: Final answer
x = 265,766.70
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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.