Finding the Fourth Proportional to 509,823.81, 764,571.99 and 168,190.44
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Solution
The fourth proportional to 509,823.81, 764,571.99 and 168,190.44 is: 252,231.65
Step by Step Solution
- Step 1: Write the proportion equation
509,823.81 : 764,571.99 = 168,190.44 : x - Step 2: Convert to fraction form
509,823.81/764,571.99 = 168,190.44/x - Step 3: Cross multiply
509,823.81x = 764,571.99 × 168,190.44 - Step 4: Simplify right side
509,823.81x = 128,593,699,409.78 - Step 5: Solve for x
x = 128,593,699,409.78/509,823.81 - Step 6: Final answer
x = 252,231.65
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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.