Finding the Fourth Proportional to 220,115.70, 330,173.55 and 53,903.70
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Solution
The fourth proportional to 220,115.70, 330,173.55 and 53,903.70 is: 80,855.55
Step by Step Solution
- Step 1: Write the proportion equation
220,115.70 : 330,173.55 = 53,903.70 : x - Step 2: Convert to fraction form
220,115.70/330,173.55 = 53,903.70/x - Step 3: Cross multiply
220,115.70x = 330,173.55 × 53,903.70 - Step 4: Simplify right side
220,115.70x = 17,797,575,987.14 - Step 5: Solve for x
x = 17,797,575,987.14/220,115.70 - Step 6: Final answer
x = 80,855.55
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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.