Finding the Fourth Proportional to 216,576.37, 324,919.92 and 83,420.88
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Solution
The fourth proportional to 216,576.37, 324,919.92 and 83,420.88 is: 125,152.65
Step by Step Solution
- Step 1: Write the proportion equation
216,576.37 : 324,919.92 = 83,420.88 : x - Step 2: Convert to fraction form
216,576.37/324,919.92 = 83,420.88/x - Step 3: Cross multiply
216,576.37x = 324,919.92 × 83,420.88 - Step 4: Simplify right side
216,576.37x = 27,105,105,655.93 - Step 5: Solve for x
x = 27,105,105,655.93/216,576.37 - Step 6: Final answer
x = 125,152.65
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1.5x scale
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.