Finding the Fourth Proportional to 225,405.75, 311,069.67 and 124,803.75
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Solution
The fourth proportional to 225,405.75, 311,069.67 and 124,803.75 is: 172,234.57
Step by Step Solution
- Step 1: Write the proportion equation
225,405.75 : 311,069.67 = 124,803.75 : x - Step 2: Convert to fraction form
225,405.75/311,069.67 = 124,803.75/x - Step 3: Cross multiply
225,405.75x = 311,069.67 × 124,803.75 - Step 4: Simplify right side
225,405.75x = 38,822,661,327.26 - Step 5: Solve for x
x = 38,822,661,327.26/225,405.75 - Step 6: Final answer
x = 172,234.57
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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.