Finding the Fourth Proportional to 281,276.09, 421,860.37 and 84,284.09
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Solution
The fourth proportional to 281,276.09, 421,860.37 and 84,284.09 is: 126,410.02
Step by Step Solution
- Step 1: Write the proportion equation
281,276.09 : 421,860.37 = 84,284.09 : x - Step 2: Convert to fraction form
281,276.09/421,860.37 = 84,284.09/x - Step 3: Cross multiply
281,276.09x = 421,860.37 × 84,284.09 - Step 4: Simplify right side
281,276.09x = 35,556,114,861.79 - Step 5: Solve for x
x = 35,556,114,861.79/281,276.09 - Step 6: Final answer
x = 126,410.02
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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.