Finding the Fourth Proportional to 258,311.87, 387,099.79 and 190,309.08
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Solution
The fourth proportional to 258,311.87, 387,099.79 and 190,309.08 is: 285,192.49
Step by Step Solution
- Step 1: Write the proportion equation
258,311.87 : 387,099.79 = 190,309.08 : x - Step 2: Convert to fraction form
258,311.87/387,099.79 = 190,309.08/x - Step 3: Cross multiply
258,311.87x = 387,099.79 × 190,309.08 - Step 4: Simplify right side
258,311.87x = 73,668,604,903.09 - Step 5: Solve for x
x = 73,668,604,903.09/258,311.87 - Step 6: Final answer
x = 285,192.49
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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.