Finding the Fourth Proportional to 281,265.72, 421,966.26 and 115,054.20
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Solution
The fourth proportional to 281,265.72, 421,966.26 and 115,054.20 is: 172,608.99
Step by Step Solution
- Step 1: Write the proportion equation
281,265.72 : 421,966.26 = 115,054.20 : x - Step 2: Convert to fraction form
281,265.72/421,966.26 = 115,054.20/x - Step 3: Cross multiply
281,265.72x = 421,966.26 × 115,054.20 - Step 4: Simplify right side
281,265.72x = 48,548,990,471.29 - Step 5: Solve for x
x = 48,548,990,471.29/281,265.72 - Step 6: Final answer
x = 172,608.99
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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.