Finding the Fourth Proportional to 203,408.25, 280,703.37 and 112,763.99
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Solution
The fourth proportional to 203,408.25, 280,703.37 and 112,763.99 is: 155,614.29
Step by Step Solution
- Step 1: Write the proportion equation
203,408.25 : 280,703.37 = 112,763.99 : x - Step 2: Convert to fraction form
203,408.25/280,703.37 = 112,763.99/x - Step 3: Cross multiply
203,408.25x = 280,703.37 × 112,763.99 - Step 4: Simplify right side
203,408.25x = 31,653,230,604.13 - Step 5: Solve for x
x = 31,653,230,604.13/203,408.25 - Step 6: Final answer
x = 155,614.29
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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.