Finding the Fourth Proportional to 220,842.29, 331,265.16 and 120,947.99
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Solution
The fourth proportional to 220,842.29, 331,265.16 and 120,947.99 is: 181,422.93
Step by Step Solution
- Step 1: Write the proportion equation
220,842.29 : 331,265.16 = 120,947.99 : x - Step 2: Convert to fraction form
220,842.29/331,265.16 = 120,947.99/x - Step 3: Cross multiply
220,842.29x = 331,265.16 × 120,947.99 - Step 4: Simplify right side
220,842.29x = 40,065,856,389.56 - Step 5: Solve for x
x = 40,065,856,389.56/220,842.29 - Step 6: Final answer
x = 181,422.93
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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.