Finding the Fourth Proportional to 312,961.67, 469,324.65 and 113,232.68
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Solution
The fourth proportional to 312,961.67, 469,324.65 and 113,232.68 is: 169,806.38
Step by Step Solution
- Step 1: Write the proportion equation
312,961.67 : 469,324.65 = 113,232.68 : x - Step 2: Convert to fraction form
312,961.67/469,324.65 = 113,232.68/x - Step 3: Cross multiply
312,961.67x = 469,324.65 × 113,232.68 - Step 4: Simplify right side
312,961.67x = 53,142,887,909.56 - Step 5: Solve for x
x = 53,142,887,909.56/312,961.67 - Step 6: Final answer
x = 169,806.38
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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.