Finding the Fourth Proportional to 287,876.88, 431,711.64 and 121,677.84
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Solution
The fourth proportional to 287,876.88, 431,711.64 and 121,677.84 is: 182,472.94
Step by Step Solution
- Step 1: Write the proportion equation
287,876.88 : 431,711.64 = 121,677.84 : x - Step 2: Convert to fraction form
287,876.88/431,711.64 = 121,677.84/x - Step 3: Cross multiply
287,876.88x = 431,711.64 × 121,677.84 - Step 4: Simplify right side
287,876.88x = 52,529,739,858.06 - Step 5: Solve for x
x = 52,529,739,858.06/287,876.88 - Step 6: Final answer
x = 182,472.94
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.