Finding the Fourth Proportional to 190,246.90, 285,414.09 and 57,129.68
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Solution
The fourth proportional to 190,246.90, 285,414.09 and 57,129.68 is: 85,707.65
Step by Step Solution
- Step 1: Write the proportion equation
190,246.90 : 285,414.09 = 57,129.68 : x - Step 2: Convert to fraction form
190,246.90/285,414.09 = 57,129.68/x - Step 3: Cross multiply
190,246.90x = 285,414.09 × 57,129.68 - Step 4: Simplify right side
190,246.90x = 16,305,615,629.19 - Step 5: Solve for x
x = 16,305,615,629.19/190,246.90 - Step 6: Final answer
x = 85,707.65
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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.