Finding the Fourth Proportional to 213,586.16, 320,877.48 and 124,902.09
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Solution
The fourth proportional to 213,586.16, 320,877.48 and 124,902.09 is: 187,644.50
Step by Step Solution
- Step 1: Write the proportion equation
213,586.16 : 320,877.48 = 124,902.09 : x - Step 2: Convert to fraction form
213,586.16/320,877.48 = 124,902.09/x - Step 3: Cross multiply
213,586.16x = 320,877.48 × 124,902.09 - Step 4: Simplify right side
213,586.16x = 40,078,267,885.93 - Step 5: Solve for x
x = 40,078,267,885.93/213,586.16 - Step 6: Final answer
x = 187,644.50
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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.