Finding the Fourth Proportional to 178,789.16, 246,694.68 and 121,473.92
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Solution
The fourth proportional to 178,789.16, 246,694.68 and 121,473.92 is: 167,610.66
Step by Step Solution
- Step 1: Write the proportion equation
178,789.16 : 246,694.68 = 121,473.92 : x - Step 2: Convert to fraction form
178,789.16/246,694.68 = 121,473.92/x - Step 3: Cross multiply
178,789.16x = 246,694.68 × 121,473.92 - Step 4: Simplify right side
178,789.16x = 29,966,969,822.75 - Step 5: Solve for x
x = 29,966,969,822.75/178,789.16 - Step 6: Final answer
x = 167,610.66
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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.