Finding the Fourth Proportional to 201,438.10, 277,999.05 and 120,863.62
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Solution
The fourth proportional to 201,438.10, 277,999.05 and 120,863.62 is: 166,800.48
Step by Step Solution
- Step 1: Write the proportion equation
201,438.10 : 277,999.05 = 120,863.62 : x - Step 2: Convert to fraction form
201,438.10/277,999.05 = 120,863.62/x - Step 3: Cross multiply
201,438.10x = 277,999.05 × 120,863.62 - Step 4: Simplify right side
201,438.10x = 33,599,971,539.56 - Step 5: Solve for x
x = 33,599,971,539.56/201,438.10 - Step 6: Final answer
x = 166,800.48
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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.