Finding the Fourth Proportional to 312,959.67, 469,321.65 and 113,230.68
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Solution
The fourth proportional to 312,959.67, 469,321.65 and 113,230.68 is: 169,803.38
Step by Step Solution
- Step 1: Write the proportion equation
312,959.67 : 469,321.65 = 113,230.68 : x - Step 2: Convert to fraction form
312,959.67/469,321.65 = 113,230.68/x - Step 3: Cross multiply
312,959.67x = 469,321.65 × 113,230.68 - Step 4: Simplify right side
312,959.67x = 53,141,609,568.22 - Step 5: Solve for x
x = 53,141,609,568.22/312,959.67 - Step 6: Final answer
x = 169,803.38
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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.