Finding the Fourth Proportional to 220,806.99, 331,259.35 and 80,565.21
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Solution
The fourth proportional to 220,806.99, 331,259.35 and 80,565.21 is: 120,865.64
Step by Step Solution
- Step 1: Write the proportion equation
220,806.99 : 331,259.35 = 80,565.21 : x - Step 2: Convert to fraction form
220,806.99/331,259.35 = 80,565.21/x - Step 3: Cross multiply
220,806.99x = 331,259.35 × 80,565.21 - Step 4: Simplify right side
220,806.99x = 26,687,979,097.21 - Step 5: Solve for x
x = 26,687,979,097.21/220,806.99 - Step 6: Final answer
x = 120,865.64
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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.