Finding the Fourth Proportional to 252,113.70, 378,170.55 and 145,679.70
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Solution
The fourth proportional to 252,113.70, 378,170.55 and 145,679.70 is: 218,519.55
Step by Step Solution
- Step 1: Write the proportion equation
252,113.70 : 378,170.55 = 145,679.70 : x - Step 2: Convert to fraction form
252,113.70/378,170.55 = 145,679.70/x - Step 3: Cross multiply
252,113.70x = 378,170.55 × 145,679.70 - Step 4: Simplify right side
252,113.70x = 55,091,772,272.84 - Step 5: Solve for x
x = 55,091,772,272.84/252,113.70 - Step 6: Final answer
x = 218,519.55
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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.