Finding the Fourth Proportional to 178,890.53, 246,863.71 and 102,407.09
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Solution
The fourth proportional to 178,890.53, 246,863.71 and 102,407.09 is: 141,318.80
Step by Step Solution
- Step 1: Write the proportion equation
178,890.53 : 246,863.71 = 102,407.09 : x - Step 2: Convert to fraction form
178,890.53/246,863.71 = 102,407.09/x - Step 3: Cross multiply
178,890.53x = 246,863.71 × 102,407.09 - Step 4: Simplify right side
178,890.53x = 25,280,594,528.85 - Step 5: Solve for x
x = 25,280,594,528.85/178,890.53 - Step 6: Final answer
x = 141,318.80
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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.