Finding the Fourth Proportional to 178,977.75, 268,468.25 and 54,318.75
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Solution
The fourth proportional to 178,977.75, 268,468.25 and 54,318.75 is: 81,478.62
Step by Step Solution
- Step 1: Write the proportion equation
178,977.75 : 268,468.25 = 54,318.75 : x - Step 2: Convert to fraction form
178,977.75/268,468.25 = 54,318.75/x - Step 3: Cross multiply
178,977.75x = 268,468.25 × 54,318.75 - Step 4: Simplify right side
178,977.75x = 14,582,859,483.09 - Step 5: Solve for x
x = 14,582,859,483.09/178,977.75 - Step 6: Final answer
x = 81,478.62
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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.