Finding the Fourth Proportional to 205,234.80, 307,852.20 and 135,193.20
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Solution
The fourth proportional to 205,234.80, 307,852.20 and 135,193.20 is: 202,789.80
Step by Step Solution
- Step 1: Write the proportion equation
205,234.80 : 307,852.20 = 135,193.20 : x - Step 2: Convert to fraction form
205,234.80/307,852.20 = 135,193.20/x - Step 3: Cross multiply
205,234.80x = 307,852.20 × 135,193.20 - Step 4: Simplify right side
205,234.80x = 41,619,524,045.04 - Step 5: Solve for x
x = 41,619,524,045.04/205,234.80 - Step 6: Final answer
x = 202,789.80
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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.