Finding the Fourth Proportional to 260,728.80, 391,093.20 and 201,679.80
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Solution
The fourth proportional to 260,728.80, 391,093.20 and 201,679.80 is: 302,519.70
Step by Step Solution
- Step 1: Write the proportion equation
260,728.80 : 391,093.20 = 201,679.80 : x - Step 2: Convert to fraction form
260,728.80/391,093.20 = 201,679.80/x - Step 3: Cross multiply
260,728.80x = 391,093.20 × 201,679.80 - Step 4: Simplify right side
260,728.80x = 78,875,598,357.36 - Step 5: Solve for x
x = 78,875,598,357.36/260,728.80 - Step 6: Final answer
x = 302,519.70
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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.