Finding the Fourth Proportional to 252,846.89, 379,143.36 and 84,307.55
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Solution
The fourth proportional to 252,846.89, 379,143.36 and 84,307.55 is: 126,418.99
Step by Step Solution
- Step 1: Write the proportion equation
252,846.89 : 379,143.36 = 84,307.55 : x - Step 2: Convert to fraction form
252,846.89/379,143.36 = 84,307.55/x - Step 3: Cross multiply
252,846.89x = 379,143.36 × 84,307.55 - Step 4: Simplify right side
252,846.89x = 31,964,648,728.23 - Step 5: Solve for x
x = 31,964,648,728.23/252,846.89 - Step 6: Final answer
x = 126,418.99
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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.