Finding the Fourth Proportional to 228,801.71, 315,559.17 and 161,042.99
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Solution
The fourth proportional to 228,801.71, 315,559.17 and 161,042.99 is: 222,107.57
Step by Step Solution
- Step 1: Write the proportion equation
228,801.71 : 315,559.17 = 161,042.99 : x - Step 2: Convert to fraction form
228,801.71/315,559.17 = 161,042.99/x - Step 3: Cross multiply
228,801.71x = 315,559.17 × 161,042.99 - Step 4: Simplify right side
228,801.71x = 50,818,590,680.92 - Step 5: Solve for x
x = 50,818,590,680.92/228,801.71 - Step 6: Final answer
x = 222,107.57
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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.