Finding the Fourth Proportional to 287,568.18, 431,544.24 and 100,579.68
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Solution
The fourth proportional to 287,568.18, 431,544.24 and 100,579.68 is: 150,936.66
Step by Step Solution
- Step 1: Write the proportion equation
287,568.18 : 431,544.24 = 100,579.68 : x - Step 2: Convert to fraction form
287,568.18/431,544.24 = 100,579.68/x - Step 3: Cross multiply
287,568.18x = 431,544.24 × 100,579.68 - Step 4: Simplify right side
287,568.18x = 43,404,581,565.04 - Step 5: Solve for x
x = 43,404,581,565.04/287,568.18 - Step 6: Final answer
x = 150,936.66
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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.