Finding the Fourth Proportional to 216,738.37, 299,086.92 and 121,226.61
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Solution
The fourth proportional to 216,738.37, 299,086.92 and 121,226.61 is: 167,285.99
Step by Step Solution
- Step 1: Write the proportion equation
216,738.37 : 299,086.92 = 121,226.61 : x - Step 2: Convert to fraction form
216,738.37/299,086.92 = 121,226.61/x - Step 3: Cross multiply
216,738.37x = 299,086.92 × 121,226.61 - Step 4: Simplify right side
216,738.37x = 36,257,293,406.94 - Step 5: Solve for x
x = 36,257,293,406.94/216,738.37 - Step 6: Final answer
x = 167,285.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.