Finding the Fourth Proportional to 386,815.96, 580,125.38 and 120,526.84
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Solution
The fourth proportional to 386,815.96, 580,125.38 and 120,526.84 is: 180,759.55
Step by Step Solution
- Step 1: Write the proportion equation
386,815.96 : 580,125.38 = 120,526.84 : x - Step 2: Convert to fraction form
386,815.96/580,125.38 = 120,526.84/x - Step 3: Cross multiply
386,815.96x = 580,125.38 × 120,526.84 - Step 4: Simplify right side
386,815.96x = 69,920,678,855.20 - Step 5: Solve for x
x = 69,920,678,855.20/386,815.96 - Step 6: Final answer
x = 180,759.55
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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.