Finding the Fourth Proportional to 216,704.21, 299,035.57 and 121,192.45
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Solution
The fourth proportional to 216,704.21, 299,035.57 and 121,192.45 is: 167,236.50
Step by Step Solution
- Step 1: Write the proportion equation
216,704.21 : 299,035.57 = 121,192.45 : x - Step 2: Convert to fraction form
216,704.21/299,035.57 = 121,192.45/x - Step 3: Cross multiply
216,704.21x = 299,035.57 × 121,192.45 - Step 4: Simplify right side
216,704.21x = 36,240,854,565.04 - Step 5: Solve for x
x = 36,240,854,565.04/216,704.21 - Step 6: Final answer
x = 167,236.50
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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.