Finding the Fourth Proportional to 391,516.25, 587,236.38 and 125,205.26
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Solution
The fourth proportional to 391,516.25, 587,236.38 and 125,205.26 is: 187,795.73
Step by Step Solution
- Step 1: Write the proportion equation
391,516.25 : 587,236.38 = 125,205.26 : x - Step 2: Convert to fraction form
391,516.25/587,236.38 = 125,205.26/x - Step 3: Cross multiply
391,516.25x = 587,236.38 × 125,205.26 - Step 4: Simplify right side
391,516.25x = 73,525,080,703.18 - Step 5: Solve for x
x = 73,525,080,703.18/391,516.25 - Step 6: Final answer
x = 187,795.73
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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.