Finding the Fourth Proportional to 277,679.34, 416,418.57 and 100,138.68
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Solution
The fourth proportional to 277,679.34, 416,418.57 and 100,138.68 is: 150,171.80
Step by Step Solution
- Step 1: Write the proportion equation
277,679.34 : 416,418.57 = 100,138.68 : x - Step 2: Convert to fraction form
277,679.34/416,418.57 = 100,138.68/x - Step 3: Cross multiply
277,679.34x = 416,418.57 × 100,138.68 - Step 4: Simplify right side
277,679.34x = 41,699,605,927.29 - Step 5: Solve for x
x = 41,699,605,927.29/277,679.34 - Step 6: Final answer
x = 150,171.80
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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.