Finding the Fourth Proportional to 351,128.92, 484,505.96 and 213,236.14
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Solution
The fourth proportional to 351,128.92, 484,505.96 and 213,236.14 is: 294,234.32
Step by Step Solution
- Step 1: Write the proportion equation
351,128.92 : 484,505.96 = 213,236.14 : x - Step 2: Convert to fraction form
351,128.92/484,505.96 = 213,236.14/x - Step 3: Cross multiply
351,128.92x = 484,505.96 × 213,236.14 - Step 4: Simplify right side
351,128.92x = 103,314,180,717.39 - Step 5: Solve for x
x = 103,314,180,717.39/351,128.92 - Step 6: Final answer
x = 294,234.32
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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.