Finding the Fourth Proportional to 327,708.74, 491,754.18 and 138,157.49
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Solution
The fourth proportional to 327,708.74, 491,754.18 and 138,157.49 is: 207,316.79
Step by Step Solution
- Step 1: Write the proportion equation
327,708.74 : 491,754.18 = 138,157.49 : x - Step 2: Convert to fraction form
327,708.74/491,754.18 = 138,157.49/x - Step 3: Cross multiply
327,708.74x = 491,754.18 × 138,157.49 - Step 4: Simplify right side
327,708.74x = 67,939,523,205.81 - Step 5: Solve for x
x = 67,939,523,205.81/327,708.74 - Step 6: Final answer
x = 207,316.79
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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.