Finding the Fourth Proportional to 225,639.30, 311,386.26 and 123,657.99
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Solution
The fourth proportional to 225,639.30, 311,386.26 and 123,657.99 is: 170,650.23
Step by Step Solution
- Step 1: Write the proportion equation
225,639.30 : 311,386.26 = 123,657.99 : x - Step 2: Convert to fraction form
225,639.30/311,386.26 = 123,657.99/x - Step 3: Cross multiply
225,639.30x = 311,386.26 × 123,657.99 - Step 4: Simplify right side
225,639.30x = 38,505,399,025.22 - Step 5: Solve for x
x = 38,505,399,025.22/225,639.30 - Step 6: Final answer
x = 170,650.23
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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.