Finding the Fourth Proportional to 277,793.36, 416,690.18 and 78,113.75
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Solution
The fourth proportional to 277,793.36, 416,690.18 and 78,113.75 is: 117,170.66
Step by Step Solution
- Step 1: Write the proportion equation
277,793.36 : 416,690.18 = 78,113.75 : x - Step 2: Convert to fraction form
277,793.36/416,690.18 = 78,113.75/x - Step 3: Cross multiply
277,793.36x = 416,690.18 × 78,113.75 - Step 4: Simplify right side
277,793.36x = 32,549,230,659.81 - Step 5: Solve for x
x = 32,549,230,659.81/277,793.36 - Step 6: Final answer
x = 117,170.66
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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.