Finding the Fourth Proportional to 212,452.80, 318,722.88 and 177,635.84
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Solution
The fourth proportional to 212,452.80, 318,722.88 and 177,635.84 is: 266,490.28
Step by Step Solution
- Step 1: Write the proportion equation
212,452.80 : 318,722.88 = 177,635.84 : x - Step 2: Convert to fraction form
212,452.80/318,722.88 = 177,635.84/x - Step 3: Cross multiply
212,452.80x = 318,722.88 × 177,635.84 - Step 4: Simplify right side
212,452.80x = 56,616,606,516.02 - Step 5: Solve for x
x = 56,616,606,516.02/212,452.80 - Step 6: Final answer
x = 266,490.28
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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.