Finding the Fourth Proportional to 261,787.64, 392,318.12 and 119,284.65
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Solution
The fourth proportional to 261,787.64, 392,318.12 and 119,284.65 is: 178,761.42
Step by Step Solution
- Step 1: Write the proportion equation
261,787.64 : 392,318.12 = 119,284.65 : x - Step 2: Convert to fraction form
261,787.64/392,318.12 = 119,284.65/x - Step 3: Cross multiply
261,787.64x = 392,318.12 × 119,284.65 - Step 4: Simplify right side
261,787.64x = 46,797,529,036.43 - Step 5: Solve for x
x = 46,797,529,036.43/261,787.64 - Step 6: Final answer
x = 178,761.42
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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.