Finding the Fourth Proportional to 339,991.12, 509,986.50 and 161,958.52
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Solution
The fourth proportional to 339,991.12, 509,986.50 and 161,958.52 is: 242,937.69
Step by Step Solution
- Step 1: Write the proportion equation
339,991.12 : 509,986.50 = 161,958.52 : x - Step 2: Convert to fraction form
339,991.12/509,986.50 = 161,958.52/x - Step 3: Cross multiply
339,991.12x = 509,986.50 × 161,958.52 - Step 4: Simplify right side
339,991.12x = 82,596,658,759.98 - Step 5: Solve for x
x = 82,596,658,759.98/339,991.12 - Step 6: Final answer
x = 242,937.69
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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.