Finding the Fourth Proportional to 278,052.66, 416,790.09 and 118,231.20
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Solution
The fourth proportional to 278,052.66, 416,790.09 and 118,231.20 is: 177,223.96
Step by Step Solution
- Step 1: Write the proportion equation
278,052.66 : 416,790.09 = 118,231.20 : x - Step 2: Convert to fraction form
278,052.66/416,790.09 = 118,231.20/x - Step 3: Cross multiply
278,052.66x = 416,790.09 × 118,231.20 - Step 4: Simplify right side
278,052.66x = 49,277,592,488.81 - Step 5: Solve for x
x = 49,277,592,488.81/278,052.66 - Step 6: Final answer
x = 177,223.96
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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.