Finding the Fourth Proportional to 178,958.21, 267,853.19 and 131,560.74
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Solution
The fourth proportional to 178,958.21, 267,853.19 and 131,560.74 is: 196,911.69
Step by Step Solution
- Step 1: Write the proportion equation
178,958.21 : 267,853.19 = 131,560.74 : x - Step 2: Convert to fraction form
178,958.21/267,853.19 = 131,560.74/x - Step 3: Cross multiply
178,958.21x = 267,853.19 × 131,560.74 - Step 4: Simplify right side
178,958.21x = 35,238,963,229.96 - Step 5: Solve for x
x = 35,238,963,229.96/178,958.21 - Step 6: Final answer
x = 196,911.69
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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.