Finding the Fourth Proportional to 216,435.24, 324,477.99 and 90,170.64
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Solution
The fourth proportional to 216,435.24, 324,477.99 and 90,170.64 is: 135,183.11
Step by Step Solution
- Step 1: Write the proportion equation
216,435.24 : 324,477.99 = 90,170.64 : x - Step 2: Convert to fraction form
216,435.24/324,477.99 = 90,170.64/x - Step 3: Cross multiply
216,435.24x = 324,477.99 × 90,170.64 - Step 4: Simplify right side
216,435.24x = 29,258,388,024.21 - Step 5: Solve for x
x = 29,258,388,024.21/216,435.24 - Step 6: Final answer
x = 135,183.11
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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.