Finding the Fourth Proportional to 281,268.96, 421,849.68 and 84,276.96
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Solution
The fourth proportional to 281,268.96, 421,849.68 and 84,276.96 is: 126,399.33
Step by Step Solution
- Step 1: Write the proportion equation
281,268.96 : 421,849.68 = 84,276.96 : x - Step 2: Convert to fraction form
281,268.96/421,849.68 = 84,276.96/x - Step 3: Cross multiply
281,268.96x = 421,849.68 × 84,276.96 - Step 4: Simplify right side
281,268.96x = 35,552,208,607.37 - Step 5: Solve for x
x = 35,552,208,607.37/281,268.96 - Step 6: Final answer
x = 126,399.33
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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.