Finding the Fourth Proportional to 285,340.38, 393,737.94 and 157,984.08
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Solution
The fourth proportional to 285,340.38, 393,737.94 and 157,984.08 is: 218,000.43
Step by Step Solution
- Step 1: Write the proportion equation
285,340.38 : 393,737.94 = 157,984.08 : x - Step 2: Convert to fraction form
285,340.38/393,737.94 = 157,984.08/x - Step 3: Cross multiply
285,340.38x = 393,737.94 × 157,984.08 - Step 4: Simplify right side
285,340.38x = 62,204,326,212.00 - Step 5: Solve for x
x = 62,204,326,212.00/285,340.38 - Step 6: Final answer
x = 218,000.43
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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.