Finding the Fourth Proportional to 203,136.18, 280,293.12 and 126,679.26
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Solution
The fourth proportional to 203,136.18, 280,293.12 and 126,679.26 is: 174,795.67
Step by Step Solution
- Step 1: Write the proportion equation
203,136.18 : 280,293.12 = 126,679.26 : x - Step 2: Convert to fraction form
203,136.18/280,293.12 = 126,679.26/x - Step 3: Cross multiply
203,136.18x = 280,293.12 × 126,679.26 - Step 4: Simplify right side
203,136.18x = 35,507,325,024.69 - Step 5: Solve for x
x = 35,507,325,024.69/203,136.18 - Step 6: Final answer
x = 174,795.67
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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.