Finding the Fourth Proportional to 216,477.80, 324,716.70 and 163,989.80
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Solution
The fourth proportional to 216,477.80, 324,716.70 and 163,989.80 is: 245,984.70
Step by Step Solution
- Step 1: Write the proportion equation
216,477.80 : 324,716.70 = 163,989.80 : x - Step 2: Convert to fraction form
216,477.80/324,716.70 = 163,989.80/x - Step 3: Cross multiply
216,477.80x = 324,716.70 × 163,989.80 - Step 4: Simplify right side
216,477.80x = 53,250,226,689.66 - Step 5: Solve for x
x = 53,250,226,689.66/216,477.80 - Step 6: Final answer
x = 245,984.70
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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.