Finding the Fourth Proportional to 311,163.60, 466,975.80 and 124,309.20
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Solution
The fourth proportional to 311,163.60, 466,975.80 and 124,309.20 is: 186,555.84
Step by Step Solution
- Step 1: Write the proportion equation
311,163.60 : 466,975.80 = 124,309.20 : x - Step 2: Convert to fraction form
311,163.60/466,975.80 = 124,309.20/x - Step 3: Cross multiply
311,163.60x = 466,975.80 × 124,309.20 - Step 4: Simplify right side
311,163.60x = 58,049,388,117.36 - Step 5: Solve for x
x = 58,049,388,117.36/311,163.60 - Step 6: Final answer
x = 186,555.84
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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.