Finding the Fourth Proportional to 290,232.20, 434,810.70 and 165,201.80
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Solution
The fourth proportional to 290,232.20, 434,810.70 and 165,201.80 is: 247,496.70
Step by Step Solution
- Step 1: Write the proportion equation
290,232.20 : 434,810.70 = 165,201.80 : x - Step 2: Convert to fraction form
290,232.20/434,810.70 = 165,201.80/x - Step 3: Cross multiply
290,232.20x = 434,810.70 × 165,201.80 - Step 4: Simplify right side
290,232.20x = 71,831,510,299.26 - Step 5: Solve for x
x = 71,831,510,299.26/290,232.20 - Step 6: Final answer
x = 247,496.70
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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.