Finding the Fourth Proportional to 385,258.26, 531,657.24 and 213,188.70
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Solution
The fourth proportional to 385,258.26, 531,657.24 and 213,188.70 is: 294,200.87
Step by Step Solution
- Step 1: Write the proportion equation
385,258.26 : 531,657.24 = 213,188.70 : x - Step 2: Convert to fraction form
385,258.26/531,657.24 = 213,188.70/x - Step 3: Cross multiply
385,258.26x = 531,657.24 × 213,188.70 - Step 4: Simplify right side
385,258.26x = 113,343,315,841.19 - Step 5: Solve for x
x = 113,343,315,841.19/385,258.26 - Step 6: Final answer
x = 294,200.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.