Finding the Fourth Proportional to 201,635.60, 302,107.80 and 131,478.80
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Solution
The fourth proportional to 201,635.60, 302,107.80 and 131,478.80 is: 196,992.85
Step by Step Solution
- Step 1: Write the proportion equation
201,635.60 : 302,107.80 = 131,478.80 : x - Step 2: Convert to fraction form
201,635.60/302,107.80 = 131,478.80/x - Step 3: Cross multiply
201,635.60x = 302,107.80 × 131,478.80 - Step 4: Simplify right side
201,635.60x = 39,720,771,014.64 - Step 5: Solve for x
x = 39,720,771,014.64/201,635.60 - Step 6: Final answer
x = 196,992.85
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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.