Finding the Fourth Proportional to 216,378.81, 324,535.36 and 76,104.63
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Solution
The fourth proportional to 216,378.81, 324,535.36 and 76,104.63 is: 114,145.39
Step by Step Solution
- Step 1: Write the proportion equation
216,378.81 : 324,535.36 = 76,104.63 : x - Step 2: Convert to fraction form
216,378.81/324,535.36 = 76,104.63/x - Step 3: Cross multiply
216,378.81x = 324,535.36 × 76,104.63 - Step 4: Simplify right side
216,378.81x = 24,698,643,494.72 - Step 5: Solve for x
x = 24,698,643,494.72/216,378.81 - Step 6: Final answer
x = 114,145.39
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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.