Finding the Fourth Proportional to 203,193.97, 280,417.71 and 122,620.12
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Solution
The fourth proportional to 203,193.97, 280,417.71 and 122,620.12 is: 169,221.82
Step by Step Solution
- Step 1: Write the proportion equation
203,193.97 : 280,417.71 = 122,620.12 : x - Step 2: Convert to fraction form
203,193.97/280,417.71 = 122,620.12/x - Step 3: Cross multiply
203,193.97x = 280,417.71 × 122,620.12 - Step 4: Simplify right side
203,193.97x = 34,384,853,250.33 - Step 5: Solve for x
x = 34,384,853,250.33/203,193.97 - Step 6: Final answer
x = 169,221.82
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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.