Finding the Fourth Proportional to 386,880.99, 580,485.52 and 187,350.05
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Solution
The fourth proportional to 386,880.99, 580,485.52 and 187,350.05 is: 281,104.50
Step by Step Solution
- Step 1: Write the proportion equation
386,880.99 : 580,485.52 = 187,350.05 : x - Step 2: Convert to fraction form
386,880.99/580,485.52 = 187,350.05/x - Step 3: Cross multiply
386,880.99x = 580,485.52 × 187,350.05 - Step 4: Simplify right side
386,880.99x = 108,753,988,293.85 - Step 5: Solve for x
x = 108,753,988,293.85/386,880.99 - Step 6: Final answer
x = 281,104.50
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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.