Finding the Fourth Proportional to 216,811.68, 324,980.28 and 111,636.96
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Solution
The fourth proportional to 216,811.68, 324,980.28 and 111,636.96 is: 167,333.28
Step by Step Solution
- Step 1: Write the proportion equation
216,811.68 : 324,980.28 = 111,636.96 : x - Step 2: Convert to fraction form
216,811.68/324,980.28 = 111,636.96/x - Step 3: Cross multiply
216,811.68x = 324,980.28 × 111,636.96 - Step 4: Simplify right side
216,811.68x = 36,279,810,519.15 - Step 5: Solve for x
x = 36,279,810,519.15/216,811.68 - Step 6: Final answer
x = 167,333.28
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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.