Finding the Fourth Proportional to 213,202.96, 319,746.06 and 80,072.92
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Solution
The fourth proportional to 213,202.96, 319,746.06 and 80,072.92 is: 120,087.45
Step by Step Solution
- Step 1: Write the proportion equation
213,202.96 : 319,746.06 = 80,072.92 : x - Step 2: Convert to fraction form
213,202.96/319,746.06 = 80,072.92/x - Step 3: Cross multiply
213,202.96x = 319,746.06 × 80,072.92 - Step 4: Simplify right side
213,202.96x = 25,603,000,682.70 - Step 5: Solve for x
x = 25,603,000,682.70/213,202.96 - Step 6: Final answer
x = 120,087.45
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1.5x scale
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.