Finding the Fourth Proportional to 216,893.44, 299,310.01 and 121,400.11
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Solution
The fourth proportional to 216,893.44, 299,310.01 and 121,400.11 is: 167,530.51
Step by Step Solution
- Step 1: Write the proportion equation
216,893.44 : 299,310.01 = 121,400.11 : x - Step 2: Convert to fraction form
216,893.44/299,310.01 = 121,400.11/x - Step 3: Cross multiply
216,893.44x = 299,310.01 × 121,400.11 - Step 4: Simplify right side
216,893.44x = 36,336,268,138.10 - Step 5: Solve for x
x = 36,336,268,138.10/216,893.44 - Step 6: Final answer
x = 167,530.51
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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.