Finding the Fourth Proportional to 206,173.68, 284,493.12 and 121,259.76
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Solution
The fourth proportional to 206,173.68, 284,493.12 and 121,259.76 is: 167,322.85
Step by Step Solution
- Step 1: Write the proportion equation
206,173.68 : 284,493.12 = 121,259.76 : x - Step 2: Convert to fraction form
206,173.68/284,493.12 = 121,259.76/x - Step 3: Cross multiply
206,173.68x = 284,493.12 × 121,259.76 - Step 4: Simplify right side
206,173.68x = 34,497,567,452.85 - Step 5: Solve for x
x = 34,497,567,452.85/206,173.68 - Step 6: Final answer
x = 167,322.85
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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.