Finding the Fourth Proportional to 385,102.07, 531,399.97 and 212,992.68
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Solution
The fourth proportional to 385,102.07, 531,399.97 and 212,992.68 is: 293,907.28
Step by Step Solution
- Step 1: Write the proportion equation
385,102.07 : 531,399.97 = 212,992.68 : x - Step 2: Convert to fraction form
385,102.07/531,399.97 = 212,992.68/x - Step 3: Cross multiply
385,102.07x = 531,399.97 × 212,992.68 - Step 4: Simplify right side
385,102.07x = 113,184,303,762.22 - Step 5: Solve for x
x = 113,184,303,762.22/385,102.07 - Step 6: Final answer
x = 293,907.28
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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.