Finding the Fourth Proportional to 203,912.10, 305,867.61 and 133,774.74
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Solution
The fourth proportional to 203,912.10, 305,867.61 and 133,774.74 is: 200,661.76
Step by Step Solution
- Step 1: Write the proportion equation
203,912.10 : 305,867.61 = 133,774.74 : x - Step 2: Convert to fraction form
203,912.10/305,867.61 = 133,774.74/x - Step 3: Cross multiply
203,912.10x = 305,867.61 × 133,774.74 - Step 4: Simplify right side
203,912.10x = 40,917,360,002.17 - Step 5: Solve for x
x = 40,917,360,002.17/203,912.10 - Step 6: Final answer
x = 200,661.76
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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.