Finding the Fourth Proportional to 216,641.16, 324,882.12 and 74,446.08
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Solution
The fourth proportional to 216,641.16, 324,882.12 and 74,446.08 is: 111,641.76
Step by Step Solution
- Step 1: Write the proportion equation
216,641.16 : 324,882.12 = 74,446.08 : x - Step 2: Convert to fraction form
216,641.16/324,882.12 = 74,446.08/x - Step 3: Cross multiply
216,641.16x = 324,882.12 × 74,446.08 - Step 4: Simplify right side
216,641.16x = 24,186,200,296.09 - Step 5: Solve for x
x = 24,186,200,296.09/216,641.16 - Step 6: Final answer
x = 111,641.76
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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.