Finding the Fourth Proportional to 308,966.11, 461,132.69 and 288,787.96
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Solution
The fourth proportional to 308,966.11, 461,132.69 and 288,787.96 is: 431,016.75
Step by Step Solution
- Step 1: Write the proportion equation
308,966.11 : 461,132.69 = 288,787.96 : x - Step 2: Convert to fraction form
308,966.11/461,132.69 = 288,787.96/x - Step 3: Cross multiply
308,966.11x = 461,132.69 × 288,787.96 - Step 4: Simplify right side
308,966.11x = 133,169,568,834.41 - Step 5: Solve for x
x = 133,169,568,834.41/308,966.11 - Step 6: Final answer
x = 431,016.75
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.