Finding the Fourth Proportional to 342,107.20, 513,160.80 and 202,139.20
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Solution
The fourth proportional to 342,107.20, 513,160.80 and 202,139.20 is: 303,208.80
Step by Step Solution
- Step 1: Write the proportion equation
342,107.20 : 513,160.80 = 202,139.20 : x - Step 2: Convert to fraction form
342,107.20/513,160.80 = 202,139.20/x - Step 3: Cross multiply
342,107.20x = 513,160.80 × 202,139.20 - Step 4: Simplify right side
342,107.20x = 103,729,913,583.36 - Step 5: Solve for x
x = 103,729,913,583.36/342,107.20 - Step 6: Final answer
x = 303,208.80
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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.