Finding the Fourth Proportional to 170,490.87, 255,645.99 and 75,679.83
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Solution
The fourth proportional to 170,490.87, 255,645.99 and 75,679.83 is: 113,479.65
Step by Step Solution
- Step 1: Write the proportion equation
170,490.87 : 255,645.99 = 75,679.83 : x - Step 2: Convert to fraction form
170,490.87/255,645.99 = 75,679.83/x - Step 3: Cross multiply
170,490.87x = 255,645.99 × 75,679.83 - Step 4: Simplify right side
170,490.87x = 19,347,245,063.38 - Step 5: Solve for x
x = 19,347,245,063.38/170,490.87 - Step 6: Final answer
x = 113,479.65
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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.