Finding the Fourth Proportional to 207,399.79, 311,102.08 and 87,477.01
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Solution
The fourth proportional to 207,399.79, 311,102.08 and 87,477.01 is: 131,216.53
Step by Step Solution
- Step 1: Write the proportion equation
207,399.79 : 311,102.08 = 87,477.01 : x - Step 2: Convert to fraction form
207,399.79/311,102.08 = 87,477.01/x - Step 3: Cross multiply
207,399.79x = 311,102.08 × 87,477.01 - Step 4: Simplify right side
207,399.79x = 27,214,279,763.18 - Step 5: Solve for x
x = 27,214,279,763.18/207,399.79 - Step 6: Final answer
x = 131,216.53
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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.