Finding the Fourth Proportional to 278,051.16, 416,787.84 and 118,229.70
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Solution
The fourth proportional to 278,051.16, 416,787.84 and 118,229.70 is: 177,221.71
Step by Step Solution
- Step 1: Write the proportion equation
278,051.16 : 416,787.84 = 118,229.70 : x - Step 2: Convert to fraction form
278,051.16/416,787.84 = 118,229.70/x - Step 3: Cross multiply
278,051.16x = 416,787.84 × 118,229.70 - Step 4: Simplify right side
278,051.16x = 49,276,701,286.85 - Step 5: Solve for x
x = 49,276,701,286.85/278,051.16 - Step 6: Final answer
x = 177,221.71
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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.