Finding the Fourth Proportional to 232,919.13, 321,439.96 and 142,260.42
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Solution
The fourth proportional to 232,919.13, 321,439.96 and 142,260.42 is: 196,326.44
Step by Step Solution
- Step 1: Write the proportion equation
232,919.13 : 321,439.96 = 142,260.42 : x - Step 2: Convert to fraction form
232,919.13/321,439.96 = 142,260.42/x - Step 3: Cross multiply
232,919.13x = 321,439.96 × 142,260.42 - Step 4: Simplify right side
232,919.13x = 45,728,183,714.38 - Step 5: Solve for x
x = 45,728,183,714.38/232,919.13 - Step 6: Final answer
x = 196,326.44
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1.5x scale
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.