Finding the Fourth Proportional to 281,119.50, 421,723.08 and 91,535.09
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Solution
The fourth proportional to 281,119.50, 421,723.08 and 91,535.09 is: 137,316.90
Step by Step Solution
- Step 1: Write the proportion equation
281,119.50 : 421,723.08 = 91,535.09 : x - Step 2: Convert to fraction form
281,119.50/421,723.08 = 91,535.09/x - Step 3: Cross multiply
281,119.50x = 421,723.08 × 91,535.09 - Step 4: Simplify right side
281,119.50x = 38,602,457,974.26 - Step 5: Solve for x
x = 38,602,457,974.26/281,119.50 - Step 6: Final answer
x = 137,316.90
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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.