Finding the Fourth Proportional to 214,040.87, 295,378.57 and 129,141.53
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Solution
The fourth proportional to 214,040.87, 295,378.57 and 129,141.53 is: 178,216.62
Step by Step Solution
- Step 1: Write the proportion equation
214,040.87 : 295,378.57 = 129,141.53 : x - Step 2: Convert to fraction form
214,040.87/295,378.57 = 129,141.53/x - Step 3: Cross multiply
214,040.87x = 295,378.57 × 129,141.53 - Step 4: Simplify right side
214,040.87x = 38,145,639,381.83 - Step 5: Solve for x
x = 38,145,639,381.83/214,040.87 - Step 6: Final answer
x = 178,216.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.