Finding the Fourth Proportional to 411,167.26, 616,808.87 and 126,880.96
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Solution
The fourth proportional to 411,167.26, 616,808.87 and 126,880.96 is: 190,339.33
Step by Step Solution
- Step 1: Write the proportion equation
411,167.26 : 616,808.87 = 126,880.96 : x - Step 2: Convert to fraction form
411,167.26/616,808.87 = 126,880.96/x - Step 3: Cross multiply
411,167.26x = 616,808.87 × 126,880.96 - Step 4: Simplify right side
411,167.26x = 78,261,299,818.51 - Step 5: Solve for x
x = 78,261,299,818.51/411,167.26 - Step 6: Final answer
x = 190,339.33
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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.