Finding the Fourth Proportional to 100,278.26, 150,378.51 and 53,505.62
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Solution
The fourth proportional to 100,278.26, 150,378.51 and 53,505.62 is: 80,237.68
Step by Step Solution
- Step 1: Write the proportion equation
100,278.26 : 150,378.51 = 53,505.62 : x - Step 2: Convert to fraction form
100,278.26/150,378.51 = 53,505.62/x - Step 3: Cross multiply
100,278.26x = 150,378.51 × 53,505.62 - Step 4: Simplify right side
100,278.26x = 8,046,095,412.23 - Step 5: Solve for x
x = 8,046,095,412.23/100,278.26 - Step 6: Final answer
x = 80,237.68
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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.