Finding the Fourth Proportional to 451,405.20, 677,107.80 and 202,087.20
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Solution
The fourth proportional to 451,405.20, 677,107.80 and 202,087.20 is: 303,130.80
Step by Step Solution
- Step 1: Write the proportion equation
451,405.20 : 677,107.80 = 202,087.20 : x - Step 2: Convert to fraction form
451,405.20/677,107.80 = 202,087.20/x - Step 3: Cross multiply
451,405.20x = 677,107.80 × 202,087.20 - Step 4: Simplify right side
451,405.20x = 136,834,819,400.16 - Step 5: Solve for x
x = 136,834,819,400.16/451,405.20 - Step 6: Final answer
x = 303,130.80
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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.