Finding the Fourth Proportional to 212,096.15, 292,689.54 and 115,296.80
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Solution
The fourth proportional to 212,096.15, 292,689.54 and 115,296.80 is: 159,107.87
Step by Step Solution
- Step 1: Write the proportion equation
212,096.15 : 292,689.54 = 115,296.80 : x - Step 2: Convert to fraction form
212,096.15/292,689.54 = 115,296.80/x - Step 3: Cross multiply
212,096.15x = 292,689.54 × 115,296.80 - Step 4: Simplify right side
212,096.15x = 33,746,165,892.02 - Step 5: Solve for x
x = 33,746,165,892.02/212,096.15 - Step 6: Final answer
x = 159,107.87
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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.