Finding the Fourth Proportional to 203,938.13, 305,829.09 and 67,129.13
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Solution
The fourth proportional to 203,938.13, 305,829.09 and 67,129.13 is: 100,667.98
Step by Step Solution
- Step 1: Write the proportion equation
203,938.13 : 305,829.09 = 67,129.13 : x - Step 2: Convert to fraction form
203,938.13/305,829.09 = 67,129.13/x - Step 3: Cross multiply
203,938.13x = 305,829.09 × 67,129.13 - Step 4: Simplify right side
203,938.13x = 20,530,039,211.25 - Step 5: Solve for x
x = 20,530,039,211.25/203,938.13 - Step 6: Final answer
x = 100,667.98
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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.