Finding the Fourth Proportional to 252,711.60, 378,940.62 and 84,172.68
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Solution
The fourth proportional to 252,711.60, 378,940.62 and 84,172.68 is: 126,216.79
Step by Step Solution
- Step 1: Write the proportion equation
252,711.60 : 378,940.62 = 84,172.68 : x - Step 2: Convert to fraction form
252,711.60/378,940.62 = 84,172.68/x - Step 3: Cross multiply
252,711.60x = 378,940.62 × 84,172.68 - Step 4: Simplify right side
252,711.60x = 31,896,447,546.26 - Step 5: Solve for x
x = 31,896,447,546.26/252,711.60 - Step 6: Final answer
x = 126,216.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.