Finding the Fourth Proportional to 216,571.79, 324,639.63 and 90,281.99
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Solution
The fourth proportional to 216,571.79, 324,639.63 and 90,281.99 is: 135,332.08
Step by Step Solution
- Step 1: Write the proportion equation
216,571.79 : 324,639.63 = 90,281.99 : x - Step 2: Convert to fraction form
216,571.79/324,639.63 = 90,281.99/x - Step 3: Cross multiply
216,571.79x = 324,639.63 × 90,281.99 - Step 4: Simplify right side
216,571.79x = 29,309,110,206.07 - Step 5: Solve for x
x = 29,309,110,206.07/216,571.79 - Step 6: Final answer
x = 135,332.08
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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.