Finding the Fourth Proportional to 281,113.91, 421,554.86 and 107,979.48
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Solution
The fourth proportional to 281,113.91, 421,554.86 and 107,979.48 is: 161,924.66
Step by Step Solution
- Step 1: Write the proportion equation
281,113.91 : 421,554.86 = 107,979.48 : x - Step 2: Convert to fraction form
281,113.91/421,554.86 = 107,979.48/x - Step 3: Cross multiply
281,113.91x = 421,554.86 × 107,979.48 - Step 4: Simplify right side
281,113.91x = 45,519,274,034.38 - Step 5: Solve for x
x = 45,519,274,034.38/281,113.91 - Step 6: Final answer
x = 161,924.66
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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.