Finding the Fourth Proportional to 260,821.80, 391,232.70 and 201,772.80
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Solution
The fourth proportional to 260,821.80, 391,232.70 and 201,772.80 is: 302,659.20
Step by Step Solution
- Step 1: Write the proportion equation
260,821.80 : 391,232.70 = 201,772.80 : x - Step 2: Convert to fraction form
260,821.80/391,232.70 = 201,772.80/x - Step 3: Cross multiply
260,821.80x = 391,232.70 × 201,772.80 - Step 4: Simplify right side
260,821.80x = 78,940,117,330.56 - Step 5: Solve for x
x = 78,940,117,330.56/260,821.80 - Step 6: Final answer
x = 302,659.20
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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.