Finding the Fourth Proportional to 202,125.20, 302,993.40 and 157,121.60
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Solution
The fourth proportional to 202,125.20, 302,993.40 and 157,121.60 is: 235,531.28
Step by Step Solution
- Step 1: Write the proportion equation
202,125.20 : 302,993.40 = 157,121.60 : x - Step 2: Convert to fraction form
202,125.20/302,993.40 = 157,121.60/x - Step 3: Cross multiply
202,125.20x = 302,993.40 × 157,121.60 - Step 4: Simplify right side
202,125.20x = 47,606,807,797.44 - Step 5: Solve for x
x = 47,606,807,797.44/202,125.20 - Step 6: Final answer
x = 235,531.28
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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.