Finding the Fourth Proportional to 201,813.80, 302,720.70 and 130,850.60
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Solution
The fourth proportional to 201,813.80, 302,720.70 and 130,850.60 is: 196,275.90
Step by Step Solution
- Step 1: Write the proportion equation
201,813.80 : 302,720.70 = 130,850.60 : x - Step 2: Convert to fraction form
201,813.80/302,720.70 = 130,850.60/x - Step 3: Cross multiply
201,813.80x = 302,720.70 × 130,850.60 - Step 4: Simplify right side
201,813.80x = 39,611,185,227.42 - Step 5: Solve for x
x = 39,611,185,227.42/201,813.80 - Step 6: Final answer
x = 196,275.90
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1.5x scale
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.