Finding the Fourth Proportional to 287,376.88, 430,961.58 and 121,177.84
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Solution
The fourth proportional to 287,376.88, 430,961.58 and 121,177.84 is: 181,723.02
Step by Step Solution
- Step 1: Write the proportion equation
287,376.88 : 430,961.58 = 121,177.84 : x - Step 2: Convert to fraction form
287,376.88/430,961.58 = 121,177.84/x - Step 3: Cross multiply
287,376.88x = 430,961.58 × 121,177.84 - Step 4: Simplify right side
287,376.88x = 52,222,993,387.39 - Step 5: Solve for x
x = 52,222,993,387.39/287,376.88 - Step 6: Final answer
x = 181,723.02
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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.