Finding the Fourth Proportional to 298,619.34, 447,912.81 and 121,078.68
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Solution
The fourth proportional to 298,619.34, 447,912.81 and 121,078.68 is: 181,611.45
Step by Step Solution
- Step 1: Write the proportion equation
298,619.34 : 447,912.81 = 121,078.68 : x - Step 2: Convert to fraction form
298,619.34/447,912.81 = 121,078.68/x - Step 3: Cross multiply
298,619.34x = 447,912.81 × 121,078.68 - Step 4: Simplify right side
298,619.34x = 54,232,691,789.89 - Step 5: Solve for x
x = 54,232,691,789.89/298,619.34 - Step 6: Final answer
x = 181,611.45
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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.