Finding the Fourth Proportional to 203,911.80, 305,867.52 and 133,774.68
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Solution
The fourth proportional to 203,911.80, 305,867.52 and 133,774.68 is: 200,661.90
Step by Step Solution
- Step 1: Write the proportion equation
203,911.80 : 305,867.52 = 133,774.68 : x - Step 2: Convert to fraction form
203,911.80/305,867.52 = 133,774.68/x - Step 3: Cross multiply
203,911.80x = 305,867.52 × 133,774.68 - Step 4: Simplify right side
203,911.80x = 40,917,329,610.39 - Step 5: Solve for x
x = 40,917,329,610.39/203,911.80 - Step 6: Final answer
x = 200,661.90
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.