Finding the Fourth Proportional to 225,680.99, 311,428.19 and 130,181.99
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Solution
The fourth proportional to 225,680.99, 311,428.19 and 130,181.99 is: 179,644.47
Step by Step Solution
- Step 1: Write the proportion equation
225,680.99 : 311,428.19 = 130,181.99 : x - Step 2: Convert to fraction form
225,680.99/311,428.19 = 130,181.99/x - Step 3: Cross multiply
225,680.99x = 311,428.19 × 130,181.99 - Step 4: Simplify right side
225,680.99x = 40,542,340,284.61 - Step 5: Solve for x
x = 40,542,340,284.61/225,680.99 - Step 6: Final answer
x = 179,644.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.