Finding the Fourth Proportional to 342,107.70, 513,161.55 and 202,139.70
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Solution
The fourth proportional to 342,107.70, 513,161.55 and 202,139.70 is: 303,209.55
Step by Step Solution
- Step 1: Write the proportion equation
342,107.70 : 513,161.55 = 202,139.70 : x - Step 2: Convert to fraction form
342,107.70/513,161.55 = 202,139.70/x - Step 3: Cross multiply
342,107.70x = 513,161.55 × 202,139.70 - Step 4: Simplify right side
342,107.70x = 103,730,321,768.54 - Step 5: Solve for x
x = 103,730,321,768.54/342,107.70 - Step 6: Final answer
x = 303,209.55
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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.