Finding the Fourth Proportional to 201,397.60, 301,750.80 and 131,240.80
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Solution
The fourth proportional to 201,397.60, 301,750.80 and 131,240.80 is: 196,635.99
Step by Step Solution
- Step 1: Write the proportion equation
201,397.60 : 301,750.80 = 131,240.80 : x - Step 2: Convert to fraction form
201,397.60/301,750.80 = 131,240.80/x - Step 3: Cross multiply
201,397.60x = 301,750.80 × 131,240.80 - Step 4: Simplify right side
201,397.60x = 39,602,016,392.64 - Step 5: Solve for x
x = 39,602,016,392.64/201,397.60 - Step 6: Final answer
x = 196,635.99
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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.