Finding the Fourth Proportional to 216,415.80, 324,623.70 and 163,927.80
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Solution
The fourth proportional to 216,415.80, 324,623.70 and 163,927.80 is: 245,891.70
Step by Step Solution
- Step 1: Write the proportion equation
216,415.80 : 324,623.70 = 163,927.80 : x - Step 2: Convert to fraction form
216,415.80/324,623.70 = 163,927.80/x - Step 3: Cross multiply
216,415.80x = 324,623.70 × 163,927.80 - Step 4: Simplify right side
216,415.80x = 53,214,848,968.86 - Step 5: Solve for x
x = 53,214,848,968.86/216,415.80 - Step 6: Final answer
x = 245,891.70
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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.