Finding the Fourth Proportional to 212,767.70, 318,880.20 and 112,975.70
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Solution
The fourth proportional to 212,767.70, 318,880.20 and 112,975.70 is: 169,319.47
Step by Step Solution
- Step 1: Write the proportion equation
212,767.70 : 318,880.20 = 112,975.70 : x - Step 2: Convert to fraction form
212,767.70/318,880.20 = 112,975.70/x - Step 3: Cross multiply
212,767.70x = 318,880.20 × 112,975.70 - Step 4: Simplify right side
212,767.70x = 36,025,713,811.14 - Step 5: Solve for x
x = 36,025,713,811.14/212,767.70 - Step 6: Final answer
x = 169,319.47
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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.