Finding the Fourth Proportional to 277,794.36, 416,691.68 and 78,114.75
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Solution
The fourth proportional to 277,794.36, 416,691.68 and 78,114.75 is: 117,172.16
Step by Step Solution
- Step 1: Write the proportion equation
277,794.36 : 416,691.68 = 78,114.75 : x - Step 2: Convert to fraction form
277,794.36/416,691.68 = 78,114.75/x - Step 3: Cross multiply
277,794.36x = 416,691.68 × 78,114.75 - Step 4: Simplify right side
277,794.36x = 32,549,766,410.28 - Step 5: Solve for x
x = 32,549,766,410.28/277,794.36 - Step 6: Final answer
x = 117,172.16
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1.5x scale
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.