Finding the Fourth Proportional to 221,244.40, 331,866.60 and 201,998.80
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Solution
The fourth proportional to 221,244.40, 331,866.60 and 201,998.80 is: 302,998.20
Step by Step Solution
- Step 1: Write the proportion equation
221,244.40 : 331,866.60 = 201,998.80 : x - Step 2: Convert to fraction form
221,244.40/331,866.60 = 201,998.80/x - Step 3: Cross multiply
221,244.40x = 331,866.60 × 201,998.80 - Step 4: Simplify right side
221,244.40x = 67,036,654,960.08 - Step 5: Solve for x
x = 67,036,654,960.08/221,244.40 - Step 6: Final answer
x = 302,998.20
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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.