Finding the Fourth Proportional to 216,288.08, 324,321.36 and 115,143.59
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Solution
The fourth proportional to 216,288.08, 324,321.36 and 115,143.59 is: 172,656.42
Step by Step Solution
- Step 1: Write the proportion equation
216,288.08 : 324,321.36 = 115,143.59 : x - Step 2: Convert to fraction form
216,288.08/324,321.36 = 115,143.59/x - Step 3: Cross multiply
216,288.08x = 324,321.36 × 115,143.59 - Step 4: Simplify right side
216,288.08x = 37,343,525,704.08 - Step 5: Solve for x
x = 37,343,525,704.08/216,288.08 - Step 6: Final answer
x = 172,656.42
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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.