Finding the Fourth Proportional to 287,836.68, 431,493.66 and 100,746.12
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Solution
The fourth proportional to 287,836.68, 431,493.66 and 100,746.12 is: 151,027.70
Step by Step Solution
- Step 1: Write the proportion equation
287,836.68 : 431,493.66 = 100,746.12 : x - Step 2: Convert to fraction form
287,836.68/431,493.66 = 100,746.12/x - Step 3: Cross multiply
287,836.68x = 431,493.66 × 100,746.12 - Step 4: Simplify right side
287,836.68x = 43,471,312,049.60 - Step 5: Solve for x
x = 43,471,312,049.60/287,836.68 - Step 6: Final answer
x = 151,027.70
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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.