Finding the Fourth Proportional to 243,390.38, 335,660.52 and 202,689.29
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Solution
The fourth proportional to 243,390.38, 335,660.52 and 202,689.29 is: 279,529.52
Step by Step Solution
- Step 1: Write the proportion equation
243,390.38 : 335,660.52 = 202,689.29 : x - Step 2: Convert to fraction form
243,390.38/335,660.52 = 202,689.29/x - Step 3: Cross multiply
243,390.38x = 335,660.52 × 202,689.29 - Step 4: Simplify right side
243,390.38x = 68,034,794,079.07 - Step 5: Solve for x
x = 68,034,794,079.07/243,390.38 - Step 6: Final answer
x = 279,529.52
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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.