Finding the Fourth Proportional to 178,787.16, 246,691.92 and 121,471.92
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Solution
The fourth proportional to 178,787.16, 246,691.92 and 121,471.92 is: 167,607.90
Step by Step Solution
- Step 1: Write the proportion equation
178,787.16 : 246,691.92 = 121,471.92 : x - Step 2: Convert to fraction form
178,787.16/246,691.92 = 121,471.92/x - Step 3: Cross multiply
178,787.16x = 246,691.92 × 121,471.92 - Step 4: Simplify right side
178,787.16x = 29,966,141,170.89 - Step 5: Solve for x
x = 29,966,141,170.89/178,787.16 - Step 6: Final answer
x = 167,607.90
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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.