Finding the Fourth Proportional to 212,055.63, 318,229.44 and 87,396.63
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Solution
The fourth proportional to 212,055.63, 318,229.44 and 87,396.63 is: 131,155.12
Step by Step Solution
- Step 1: Write the proportion equation
212,055.63 : 318,229.44 = 87,396.63 : x - Step 2: Convert to fraction form
212,055.63/318,229.44 = 87,396.63/x - Step 3: Cross multiply
212,055.63x = 318,229.44 × 87,396.63 - Step 4: Simplify right side
212,055.63x = 27,812,180,622.79 - Step 5: Solve for x
x = 27,812,180,622.79/212,055.63 - Step 6: Final answer
x = 131,155.12
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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.