Finding the Fourth Proportional to 342,138.40, 513,207.60 and 155,149.90
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Solution
The fourth proportional to 342,138.40, 513,207.60 and 155,149.90 is: 232,724.85
Step by Step Solution
- Step 1: Write the proportion equation
342,138.40 : 513,207.60 = 155,149.90 : x - Step 2: Convert to fraction form
342,138.40/513,207.60 = 155,149.90/x - Step 3: Cross multiply
342,138.40x = 513,207.60 × 155,149.90 - Step 4: Simplify right side
342,138.40x = 79,624,107,819.24 - Step 5: Solve for x
x = 79,624,107,819.24/342,138.40 - Step 6: Final answer
x = 232,724.85
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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.