Finding the Fourth Proportional to 204,712.49, 307,163.84 and 78,310.95
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Solution
The fourth proportional to 204,712.49, 307,163.84 and 78,310.95 is: 117,502.81
Step by Step Solution
- Step 1: Write the proportion equation
204,712.49 : 307,163.84 = 78,310.95 : x - Step 2: Convert to fraction form
204,712.49/307,163.84 = 78,310.95/x - Step 3: Cross multiply
204,712.49x = 307,163.84 × 78,310.95 - Step 4: Simplify right side
204,712.49x = 24,054,292,311.83 - Step 5: Solve for x
x = 24,054,292,311.83/204,712.49 - Step 6: Final answer
x = 117,502.81
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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.