Finding the Fourth Proportional to 220,121.80, 330,182.70 and 102,023.80
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Solution
The fourth proportional to 220,121.80, 330,182.70 and 102,023.80 is: 153,035.70
Step by Step Solution
- Step 1: Write the proportion equation
220,121.80 : 330,182.70 = 102,023.80 : x - Step 2: Convert to fraction form
220,121.80/330,182.70 = 102,023.80/x - Step 3: Cross multiply
220,121.80x = 330,182.70 × 102,023.80 - Step 4: Simplify right side
220,121.80x = 33,686,493,748.26 - Step 5: Solve for x
x = 33,686,493,748.26/220,121.80 - Step 6: Final answer
x = 153,035.70
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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.