Finding the Fourth Proportional to 216,839.21, 299,099.26 and 173,921.68
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Solution
The fourth proportional to 216,839.21, 299,099.26 and 173,921.68 is: 239,900.55
Step by Step Solution
- Step 1: Write the proportion equation
216,839.21 : 299,099.26 = 173,921.68 : x - Step 2: Convert to fraction form
216,839.21/299,099.26 = 173,921.68/x - Step 3: Cross multiply
216,839.21x = 299,099.26 × 173,921.68 - Step 4: Simplify right side
216,839.21x = 52,019,845,785.96 - Step 5: Solve for x
x = 52,019,845,785.96/216,839.21 - Step 6: Final answer
x = 239,900.55
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1.5x scale
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.