Finding the Fourth Proportional to 213,961.26, 295,276.68 and 129,076.50
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Solution
The fourth proportional to 213,961.26, 295,276.68 and 129,076.50 is: 178,131.69
Step by Step Solution
- Step 1: Write the proportion equation
213,961.26 : 295,276.68 = 129,076.50 : x - Step 2: Convert to fraction form
213,961.26/295,276.68 = 129,076.50/x - Step 3: Cross multiply
213,961.26x = 295,276.68 × 129,076.50 - Step 4: Simplify right side
213,961.26x = 38,113,280,386.02 - Step 5: Solve for x
x = 38,113,280,386.02/213,961.26 - Step 6: Final answer
x = 178,131.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.