Finding the Fourth Proportional to 99,544.40, 149,201.40 and 40,350.80
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Solution
The fourth proportional to 99,544.40, 149,201.40 and 40,350.80 is: 60,479.50
Step by Step Solution
- Step 1: Write the proportion equation
99,544.40 : 149,201.40 = 40,350.80 : x - Step 2: Convert to fraction form
99,544.40/149,201.40 = 40,350.80/x - Step 3: Cross multiply
99,544.40x = 149,201.40 × 40,350.80 - Step 4: Simplify right side
99,544.40x = 6,020,395,851.12 - Step 5: Solve for x
x = 6,020,395,851.12/99,544.40 - Step 6: Final answer
x = 60,479.50
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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.