Finding the Fourth Proportional to 178,467.20, 246,284.76 and 103,015.68
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Solution
The fourth proportional to 178,467.20, 246,284.76 and 103,015.68 is: 142,161.65
Step by Step Solution
- Step 1: Write the proportion equation
178,467.20 : 246,284.76 = 103,015.68 : x - Step 2: Convert to fraction form
178,467.20/246,284.76 = 103,015.68/x - Step 3: Cross multiply
178,467.20x = 246,284.76 × 103,015.68 - Step 4: Simplify right side
178,467.20x = 25,371,192,025.04 - Step 5: Solve for x
x = 25,371,192,025.04/178,467.20 - Step 6: Final answer
x = 142,161.65
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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.