Finding the Fourth Proportional to 216,907.70, 325,405.49 and 76,764.74
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Solution
The fourth proportional to 216,907.70, 325,405.49 and 76,764.74 is: 115,162.65
Step by Step Solution
- Step 1: Write the proportion equation
216,907.70 : 325,405.49 = 76,764.74 : x - Step 2: Convert to fraction form
216,907.70/325,405.49 = 76,764.74/x - Step 3: Cross multiply
216,907.70x = 325,405.49 × 76,764.74 - Step 4: Simplify right side
216,907.70x = 24,979,665,823.57 - Step 5: Solve for x
x = 24,979,665,823.57/216,907.70 - Step 6: Final answer
x = 115,162.65
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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.