Finding the Fourth Proportional to 216,861.02, 299,274.93 and 121,367.49
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Solution
The fourth proportional to 216,861.02, 299,274.93 and 121,367.49 is: 167,490.90
Step by Step Solution
- Step 1: Write the proportion equation
216,861.02 : 299,274.93 = 121,367.49 : x - Step 2: Convert to fraction form
216,861.02/299,274.93 = 121,367.49/x - Step 3: Cross multiply
216,861.02x = 299,274.93 × 121,367.49 - Step 4: Simplify right side
216,861.02x = 36,322,247,074.03 - Step 5: Solve for x
x = 36,322,247,074.03/216,861.02 - Step 6: Final answer
x = 167,490.90
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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.