Finding the Fourth Proportional to 201,709.60, 302,564.40 and 131,207.20
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Solution
The fourth proportional to 201,709.60, 302,564.40 and 131,207.20 is: 196,810.80
Step by Step Solution
- Step 1: Write the proportion equation
201,709.60 : 302,564.40 = 131,207.20 : x - Step 2: Convert to fraction form
201,709.60/302,564.40 = 131,207.20/x - Step 3: Cross multiply
201,709.60x = 302,564.40 × 131,207.20 - Step 4: Simplify right side
201,709.60x = 39,698,627,743.68 - Step 5: Solve for x
x = 39,698,627,743.68/201,709.60 - Step 6: Final answer
x = 196,810.80
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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.