Finding the Fourth Proportional to 311,806.80, 468,055.80 and 193,611.60
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Solution
The fourth proportional to 311,806.80, 468,055.80 and 193,611.60 is: 290,631.99
Step by Step Solution
- Step 1: Write the proportion equation
311,806.80 : 468,055.80 = 193,611.60 : x - Step 2: Convert to fraction form
311,806.80/468,055.80 = 193,611.60/x - Step 3: Cross multiply
311,806.80x = 468,055.80 × 193,611.60 - Step 4: Simplify right side
311,806.80x = 90,621,032,327.28 - Step 5: Solve for x
x = 90,621,032,327.28/311,806.80 - Step 6: Final answer
x = 290,631.99
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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.