Finding the Fourth Proportional to 387,169.20, 580,827.24 and 134,439.84
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Solution
The fourth proportional to 387,169.20, 580,827.24 and 134,439.84 is: 201,685.26
Step by Step Solution
- Step 1: Write the proportion equation
387,169.20 : 580,827.24 = 134,439.84 : x - Step 2: Convert to fraction form
387,169.20/580,827.24 = 134,439.84/x - Step 3: Cross multiply
387,169.20x = 580,827.24 × 134,439.84 - Step 4: Simplify right side
387,169.20x = 78,086,321,213.24 - Step 5: Solve for x
x = 78,086,321,213.24/387,169.20 - Step 6: Final answer
x = 201,685.26
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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.