Finding the Fourth Proportional to 285,809.25, 428,340.13 and 117,132.08
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Solution
The fourth proportional to 285,809.25, 428,340.13 and 117,132.08 is: 175,544.95
Step by Step Solution
- Step 1: Write the proportion equation
285,809.25 : 428,340.13 = 117,132.08 : x - Step 2: Convert to fraction form
285,809.25/428,340.13 = 117,132.08/x - Step 3: Cross multiply
285,809.25x = 428,340.13 × 117,132.08 - Step 4: Simplify right side
285,809.25x = 50,172,370,374.37 - Step 5: Solve for x
x = 50,172,370,374.37/285,809.25 - Step 6: Final answer
x = 175,544.95
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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.