Finding the Fourth Proportional to 221,070.40, 331,605.60 and 201,716.80
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Solution
The fourth proportional to 221,070.40, 331,605.60 and 201,716.80 is: 302,575.20
Step by Step Solution
- Step 1: Write the proportion equation
221,070.40 : 331,605.60 = 201,716.80 : x - Step 2: Convert to fraction form
221,070.40/331,605.60 = 201,716.80/x - Step 3: Cross multiply
221,070.40x = 331,605.60 × 201,716.80 - Step 4: Simplify right side
221,070.40x = 66,890,420,494.08 - Step 5: Solve for x
x = 66,890,420,494.08/221,070.40 - Step 6: Final answer
x = 302,575.20
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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.