Finding the Fourth Proportional to 213,740.16, 320,858.70 and 125,057.31
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Solution
The fourth proportional to 213,740.16, 320,858.70 and 125,057.31 is: 187,731.34
Step by Step Solution
- Step 1: Write the proportion equation
213,740.16 : 320,858.70 = 125,057.31 : x - Step 2: Convert to fraction form
213,740.16/320,858.70 = 125,057.31/x - Step 3: Cross multiply
213,740.16x = 320,858.70 × 125,057.31 - Step 4: Simplify right side
213,740.16x = 40,125,725,912.10 - Step 5: Solve for x
x = 40,125,725,912.10/213,740.16 - Step 6: Final answer
x = 187,731.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.