Finding the Fourth Proportional to 258,313.88, 387,102.80 and 190,311.09
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Solution
The fourth proportional to 258,313.88, 387,102.80 and 190,311.09 is: 285,195.50
Step by Step Solution
- Step 1: Write the proportion equation
258,313.88 : 387,102.80 = 190,311.09 : x - Step 2: Convert to fraction form
258,313.88/387,102.80 = 190,311.09/x - Step 3: Cross multiply
258,313.88x = 387,102.80 × 190,311.09 - Step 4: Simplify right side
258,313.88x = 73,669,954,858.50 - Step 5: Solve for x
x = 73,669,954,858.50/258,313.88 - Step 6: Final answer
x = 285,195.50
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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.