Finding the Fourth Proportional to 281,169.28, 421,706.53 and 121,201.17
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Solution
The fourth proportional to 281,169.28, 421,706.53 and 121,201.17 is: 181,781.33
Step by Step Solution
- Step 1: Write the proportion equation
281,169.28 : 421,706.53 = 121,201.17 : x - Step 2: Convert to fraction form
281,169.28/421,706.53 = 121,201.17/x - Step 3: Cross multiply
281,169.28x = 421,706.53 × 121,201.17 - Step 4: Simplify right side
281,169.28x = 51,111,324,832.64 - Step 5: Solve for x
x = 51,111,324,832.64/281,169.28 - Step 6: Final answer
x = 181,781.33
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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.