Finding the Fourth Proportional to 178,242.80, 267,364.20 and 115,257.20
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Solution
The fourth proportional to 178,242.80, 267,364.20 and 115,257.20 is: 172,885.80
Step by Step Solution
- Step 1: Write the proportion equation
178,242.80 : 267,364.20 = 115,257.20 : x - Step 2: Convert to fraction form
178,242.80/267,364.20 = 115,257.20/x - Step 3: Cross multiply
178,242.80x = 267,364.20 × 115,257.20 - Step 4: Simplify right side
178,242.80x = 30,815,649,072.24 - Step 5: Solve for x
x = 30,815,649,072.24/178,242.80 - Step 6: Final answer
x = 172,885.80
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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.