Finding the Fourth Proportional to 216,870.14, 325,317.97 and 83,751.09
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Solution
The fourth proportional to 216,870.14, 325,317.97 and 83,751.09 is: 125,631.56
Step by Step Solution
- Step 1: Write the proportion equation
216,870.14 : 325,317.97 = 83,751.09 : x - Step 2: Convert to fraction form
216,870.14/325,317.97 = 83,751.09/x - Step 3: Cross multiply
216,870.14x = 325,317.97 × 83,751.09 - Step 4: Simplify right side
216,870.14x = 27,245,734,584.09 - Step 5: Solve for x
x = 27,245,734,584.09/216,870.14 - Step 6: Final answer
x = 125,631.56
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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.