Finding the Fourth Proportional to 205,199.68, 307,725.84 and 86,879.44
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Solution
The fourth proportional to 205,199.68, 307,725.84 and 86,879.44 is: 130,287.96
Step by Step Solution
- Step 1: Write the proportion equation
205,199.68 : 307,725.84 = 86,879.44 : x - Step 2: Convert to fraction form
205,199.68/307,725.84 = 86,879.44/x - Step 3: Cross multiply
205,199.68x = 307,725.84 × 86,879.44 - Step 4: Simplify right side
205,199.68x = 26,735,048,652.73 - Step 5: Solve for x
x = 26,735,048,652.73/205,199.68 - Step 6: Final answer
x = 130,287.96
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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.