Finding the Fourth Proportional to 281,322.28, 421,982.10 and 115,110.28
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Solution
The fourth proportional to 281,322.28, 421,982.10 and 115,110.28 is: 172,664.88
Step by Step Solution
- Step 1: Write the proportion equation
281,322.28 : 421,982.10 = 115,110.28 : x - Step 2: Convert to fraction form
281,322.28/421,982.10 = 115,110.28/x - Step 3: Cross multiply
281,322.28x = 421,982.10 × 115,110.28 - Step 4: Simplify right side
281,322.28x = 48,574,477,685.99 - Step 5: Solve for x
x = 48,574,477,685.99/281,322.28 - Step 6: Final answer
x = 172,664.88
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1.5x scale
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.