Finding the Fourth Proportional to 307,949.20, 461,837.40 and 97,651.60
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Solution
The fourth proportional to 307,949.20, 461,837.40 and 97,651.60 is: 146,450.00
Step by Step Solution
- Step 1: Write the proportion equation
307,949.20 : 461,837.40 = 97,651.60 : x - Step 2: Convert to fraction form
307,949.20/461,837.40 = 97,651.60/x - Step 3: Cross multiply
307,949.20x = 461,837.40 × 97,651.60 - Step 4: Simplify right side
307,949.20x = 45,099,161,049.84 - Step 5: Solve for x
x = 45,099,161,049.84/307,949.20 - Step 6: Final answer
x = 146,450.00
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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.