Finding the Fourth Proportional to 216,421.80, 324,632.70 and 163,933.80
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Solution
The fourth proportional to 216,421.80, 324,632.70 and 163,933.80 is: 245,900.70
Step by Step Solution
- Step 1: Write the proportion equation
216,421.80 : 324,632.70 = 163,933.80 : x - Step 2: Convert to fraction form
216,421.80/324,632.70 = 163,933.80/x - Step 3: Cross multiply
216,421.80x = 324,632.70 × 163,933.80 - Step 4: Simplify right side
216,421.80x = 53,218,272,115.26 - Step 5: Solve for x
x = 53,218,272,115.26/216,421.80 - Step 6: Final answer
x = 245,900.70
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1.5x scale
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.