Finding the Fourth Proportional to 178,138.20, 267,207.30 and 166,387.80
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Solution
The fourth proportional to 178,138.20, 267,207.30 and 166,387.80 is: 249,581.70
Step by Step Solution
- Step 1: Write the proportion equation
178,138.20 : 267,207.30 = 166,387.80 : x - Step 2: Convert to fraction form
178,138.20/267,207.30 = 166,387.80/x - Step 3: Cross multiply
178,138.20x = 267,207.30 × 166,387.80 - Step 4: Simplify right side
178,138.20x = 44,460,034,790.94 - Step 5: Solve for x
x = 44,460,034,790.94/178,138.20 - Step 6: Final answer
x = 249,581.70
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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.