Finding the Fourth Proportional to 225,452.75, 311,134.58 and 124,850.75
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Solution
The fourth proportional to 225,452.75, 311,134.58 and 124,850.75 is: 172,299.45
Step by Step Solution
- Step 1: Write the proportion equation
225,452.75 : 311,134.58 = 124,850.75 : x - Step 2: Convert to fraction form
225,452.75/311,134.58 = 124,850.75/x - Step 3: Cross multiply
225,452.75x = 311,134.58 × 124,850.75 - Step 4: Simplify right side
225,452.75x = 38,845,385,039.68 - Step 5: Solve for x
x = 38,845,385,039.68/225,452.75 - Step 6: Final answer
x = 172,299.45
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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.