Finding the Fourth Proportional to 188,862.20, 283,293.30 and 129,879.80
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Solution
The fourth proportional to 188,862.20, 283,293.30 and 129,879.80 is: 194,819.70
Step by Step Solution
- Step 1: Write the proportion equation
188,862.20 : 283,293.30 = 129,879.80 : x - Step 2: Convert to fraction form
188,862.20/283,293.30 = 129,879.80/x - Step 3: Cross multiply
188,862.20x = 283,293.30 × 129,879.80 - Step 4: Simplify right side
188,862.20x = 36,794,077,145.34 - Step 5: Solve for x
x = 36,794,077,145.34/188,862.20 - Step 6: Final answer
x = 194,819.70
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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.