Finding the Fourth Proportional to 203,778.79, 281,209.26 and 122,153.15
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Solution
The fourth proportional to 203,778.79, 281,209.26 and 122,153.15 is: 168,568.07
Step by Step Solution
- Step 1: Write the proportion equation
203,778.79 : 281,209.26 = 122,153.15 : x - Step 2: Convert to fraction form
203,778.79/281,209.26 = 122,153.15/x - Step 3: Cross multiply
203,778.79x = 281,209.26 × 122,153.15 - Step 4: Simplify right side
203,778.79x = 34,350,596,918.17 - Step 5: Solve for x
x = 34,350,596,918.17/203,778.79 - Step 6: Final answer
x = 168,568.07
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.