Finding the Fourth Proportional to 203,472.13, 305,208.19 and 78,813.13
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Solution
The fourth proportional to 203,472.13, 305,208.19 and 78,813.13 is: 118,219.69
Step by Step Solution
- Step 1: Write the proportion equation
203,472.13 : 305,208.19 = 78,813.13 : x - Step 2: Convert to fraction form
203,472.13/305,208.19 = 78,813.13/x - Step 3: Cross multiply
203,472.13x = 305,208.19 × 78,813.13 - Step 4: Simplify right side
203,472.13x = 24,054,412,755.53 - Step 5: Solve for x
x = 24,054,412,755.53/203,472.13 - Step 6: Final answer
x = 118,219.69
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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.